Sharp Sd2060 Copier Service Manual

SERVICE MANUALCODE:00ZSD2060TM/E

NO.2MODEL SD-2060

[1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

[2] PRODUCT SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

[3] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

[4] PROCESS SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

[5] DEVELOPER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

[6] PAPER FEED/TRANSPORT SECTION . . . . . . . . . . . . . . . . . . . . . . . . 6-1

[7] OPTICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

[8] RADF SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

[9] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

[10] COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

CONTENTS

SHARP CORPORATIONThis document has been published to be used forafter sales service only.The contents are subject to change without notice.

Parts marked with "! " is important for maintaining the safety of the set. Be sure to replace these parts with specifiedones for maintaining the safety and performance of the set.

CONTENTS

[ 1 ] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1. SD-2060 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12. Target usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13. Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14. System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

[ 2 ] PRODUCT SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

1. Basic specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12. Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13. Details of each section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24. Other options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25. Supply parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

[ 3 ] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

1. Appearance and structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12. Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23. Internal structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34. Clutches and solenoids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45. Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56. Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-77. PWB unit list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

[ 4 ] PROCESS (Photoconductor drum and cleaning unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

1. Basic theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12. SD-2060 basic process and structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33. Basic structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-94. Optical system dirt correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

[ 5 ] DEVELOPING UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

1. Basic theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12. Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

[ 6 ] PAPER FEED/TRANSPORT SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

1. Basic specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12. Basic composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13. Basic operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

[ 7 ] OPTICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12. Basic composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13. Basic operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24. Optical system dirt/copy lamp deterioration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

[ 8 ] RADF (Reversing Automatic Document Feeder) unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12. Basic composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13. Basic operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

I

[ 9 ] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

1. System block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12. Operations at power ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-23. Main circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-24. POWER SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-125. RADF Electrical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16

[10] COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

1. General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12. System A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13. System B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

II

[1] PRODUCT OUTLINE

1. SD-2060

The SD-2060 has an original replacement speed of 60 sheets (A4and 8.5"x11") per minute using the RADF as well as a copying speedof 60 sheets per minute.In addition, the air feed system reduces the possibility of papermisfeed and the AISC (Active Image Control System) corrects deteri-oration in copy quality, thereby providing higher reliability.The large liquid crystal display allows mproved maneuverability forthe operator and service technician.

2. Target usage

Copy volume range: 20,000-80,000 copies/monthAverage copy volume: 30,000 copies/month

3. Product features

(1) High productivity

1 The newly developed RADF realizes 100% efficiency in switchingfrom single copy to duplex copy.

2 Automatic after-process functions when using the 50-sheet staplesorter (SF-S53).

3 Full frame & unit constructionThe frame of the SD-2060 is made of a high strength, rigid con-struction. Because of this, it can endure long period operations.In addition, the modular construction allows rapid replacement ofthe sub-assemblies in case of trouble, minimizing down time ofthe machine.

(2) High reliability

1 Air feed systemBy utilizing air pressure without machanical contact, the papertransport capability is more stabilized than the conventional rollerfeed systems, reducing the possibility of double feed and misfeed.

Auto job recoveryThis new function allows a misfeed error to be cancelled automati-cally by removing the minimum number of misfed paper (s) incase of a misfeed error. The drive section of the main body isdivided into several blocks which are independently driven, allow-ing paper feed in the blocks after the misfeed block, and minimiz-ing the number of jammed pages to be removed after themisfeed error.

3 Communication errorThe SD-2060 can communicate with a remote service centerthrough the telephone line. This feature allows the service techni-cian to identify the error position in advance to making a servicevisit, thereby reducing the servicing time.

(3) Ease of operation using the LCD messagedisplay

1 Key operator programsBy using the key operator programs, various mode settings andadjustments can be performed according to the user’s require-ments. Accurate account control and proper billing for copy usagecan also be accomplished with certain key operator codes.

(4) High copy quality

1 AICS (Active Image Control System)Equipped with SHARP’s unique AICS (Active Image Control Sys-tem), Toner density on the photoconductor drum is regularly moni-tored, and any variation in density due to deterioration is automati-cally corrected, maintaining high copy quality throughout the life ofthe photoconductor drum.

4. System configuration

SF-S53Staple sorter(21 bins)

SF-S16Sorter(20 bins)

SF-EA13Countercommander

DKIT-0321FCZZ

CLPTM4132FC55

SD-2060

Main body

Card type department counter SF-EA11

Department control Expansion RAM

Communication I/F board

Note: The SFEA12 is used in SEC market

1 – 1

[2] PRODUCT SPECIFICATIONS

1. Basic specifications

(1) Type: Console

(2) Kinds of originals

Max. original size A3, 11″ × 17″

Copying size 5.5″ × 8.5″ ∼ 11″ × 17″, A3 ∼ A5 (Fixed size)

(3) Copy speed

Paper size Normal copyReduction

(50%)magnification

(200%)

11″ × 17″ 35 sheets/min 35 sheets/min 34 sheets/min

8.5″ × 14″ 40 sheets/min 38 sheets/min 39 sheets/min

8.5″ × 11″ (Portrait) 60 sheets/min 52 sheets/min 43 sheets/min

8.5″ × 11″ (Landscape) 44 sheets/min 43 sheets/min 42 sheets/min

A3 35 sheets/min 35 sheets/min 34 sheets/min

B4 40 sheets/min 38 sheets/min 39 sheets/min

A4 (Portrait) 60 sheets/min 52 sheets/min 43 sheets/min

A4 (Landscape) 44 sheets/min 43 sheets/min 42 sheets/min

B5 (Portrait) 60 sheets/min 57 sheets/min 43 sheets/min

B5 (Landscape) 44 sheets/min 43 sheets/min 42 sheets/min

(4) Paper feed

Paper feed system 3-tray, multi manual feed (Trays can belocked.)

Paper feed capacity 4100 (2000 + 1000 × 2 + 100, 80g/m2)

(5) Warmup time SD-2060: Approx. 5 min

(6) First copy time 4.0 sec (Fed from tray 1.)

(7) Misfeed recovery time Within 5 sec (Conditions: Misfeed in asection other than the fuser sectionwithin 60 sec from opening the door inthe standard conditions)

(8) Appearance

Dimensions (W × D × H) 1167 × 731 × 1038 mm

Installation area 1627 × 731 mm (When the staplesorter is installed, 1747 × 731mm)

(9) Weight Approx. 239 kg (526 lbs)

(10) Power source, max. power consumption

SD-2060

Power 120V, 20A, 50Hz/60Hz common

Max. power consumption 2.0KW (including the sorter)

2. Functions

(1) Basic functions

Multicopying 1 ∼ 999 sheets

Copy density controlAutomatic mode, manual mode (9steps), photo mode (9 steps), toner savemode

Tray selectionAutomatic (Can be inhibited by the keyoperator program.)

Paper/magnificationratio selection

Possible in RADF operation

RADFSimplex or duplex originals, face-downsetting

Finish

Sort/group (when connected with thesorter)Sort/group/staple sort (when connectedwith the staple sorter)

Automatic duplexcopying

One-side original → duplex copyDuplex original → duplex copy

(2) Magnification ratio

Fixed magnification ratio 50, 70, 81, 86, 100, 115, 122, 141,200%

Zooming width 50 ∼ 200%, 151 steps in 1%increment

(3) Additional functions

Dual page copy Available

Binding margin Right binding, left bindingShift amount AB series (0mm, 3mm, 6mm, 9mm, 12mm, 15mm) Inch series (0″, 1/8″, 1/4″, 3/8″, 1/2″, 5/8″)

Edge erase Edge erase, center erase, edge + centererase

Cover insertion Cover only, back cover only, both cover andback coverCover copying available (single copy, duplexcopy)

Index paperinsertion

Max. insertion quantity: 18 sheetsIndex paper copying available (Singlecopying, duplex copying)

OHP indexsheet

Index paper copying available

Auditor Standard 500 departments, expandable tomax. 3100 departments(When DKIT-0321FCZZ is installed.)

Job program Number of programs 9 (P1 ∼ P9)

Communicationfeature

Available when CPLTM4132FC55 is installed

2 – 1

3. Details of each section

1 Original entry section(1) Platen

Max. original size A3/11″ × 17″

Original reference position Center reference (Set at left end)

(2) RADF

Original capacity 50 sheets

Original size A5 ∼ A3/5.5″ × 8.5″ ∼ 11″ × 17″

Original weight Single-sidedoriginal

13~32 lbs (35 ∼ 128g/m2) (35 ∼50g/m2 for thin paper mode)(Perforated computer form (5.5″× 8.5″ ∼ 11″ × 14.7/8″), perforated original, heat-sensitive paper for FAX)

Duplex-sidedoriginal

13~32 lbs (50 ∼ 128g/m2)5.5″×8.5″ to 8.5″×11″ (A5 ∼ A4)13~28 lbs (50 ∼ 110g/m2)8.5″×14" to 11″×17″ (A5 ∼ A3)

Random/mix paper feed Available

Detection size B5, A4, B4, A3, B5R, A4R, 8.5″ × 11″, 8.5″ × 14″, 11″×17″

Flow sensor detection B5, A4, B4, A3, B5R, A4R 81⁄2″×11″(R)x81⁄2″×14″, 11″×17″

2 Paper feed sectionCopying size

A5 to A3, 5.5" × 8.5" to 11" x 17""

Paperfeed port

CapacityPaper size

PaperweightApplicable

rangeDetecting size

First tray 2000sheets

B5, A48.5″×11″

B5, A48.5″×11″

15-24 lbs60 ~90g/m2

Standard paperonly

SecondtrayThird tray

1000sheets

B5 ∼ A38.5″×11″to11″×17″

B5, A4, B4,A3, B5R, A4R,8.5″ × 11″(R)8.5″ × 14″11″×17″

15-32 lbs60 ∼128g/m2

Standard paperonly

Manualfeed tray

100sheets

A5 ∼ A35.5″×8.5″to11″×17″

B5, A4, B4,A3, B5R, A4R,5.5 " x 8.5",8.5" x 11″(R)8.5" x 14"11″×17″″

15-32 lbs50 ∼128g/m2

Index paper 65 lbs (176g)Cover paper 110 lbs (200g),OHP, etc.

3 Duplex section

Paper size B5, A4, B4, A3, B5R, A4R,8.5″ × 11″(R) 8.5″ × 14″, 11×17

Paper weight 15-24 lbs 60 ∼ 90g/m2

Intermediate tray capacity 50 sheets (80g/m2/20 lb bond)

4 Option(1) Sorter (SF-S16)

No. of Bins Sort bin 20

Sortable size B5, A4, B4, A3, B5R, A4R, 8.5″ × 11″(R) 8.5″ × 14″, 11″×17″

Capacity Sorting 50 sheets

Grouping 30 sheets

(2) Staple sorter (SF-S53)

No. of bins Non-sort bin 1

Sort bin 20

Sorting size B5, A4, B4, A3, B5R, A4R, 8.5″ × 11″(R) 8.5″ × 14″, 11″ × 17″

Stapling size B5, A4, B4, A3, A4R, 8.5″ × 11″(R) 8.5″ × 14″, 11″ × 17″

Capacity sorting Min. 8.5″ × 14″, A3, B4 25 sheets

Max.8.5″ × 11″, A4, A4R, B5

50 sheets

Grouping Min. 8.5″ × 14″, A3, B4 25 sheets

Max.8.5″ × 11″, A4, A4R, B5

30 sheets

Stapling quantity 50 sheets

Stapling position Left upper corner, diagonal, 1position

Stapler cartridge 5000 pcs.

Stapler detection YES

Alignment ±1.5mm (maximum-3mm)

4. Other options

(1) Card counter (SF-EA11) (For SEC-SF-EA12 is used)

(2) Commander (SF-EA13)

(3) Communication interface board (CPLTM41320FC52, fixingscrew: XHBSD40P10000)

(4) Department control expansion RAM (DKIT-0321FCZZ)

(5) Key sheet and operation manual kits.

English SD-260SE

German SD-260SG

French SD-260SF

Dutch SD-260SH

Spanish SD-260SS

Italian SD-260SI

2 – 2

5. Supply parts

SD-2060 SUPPLIES LIST (SEC)

No. ITEM CONTENTS LIFEMODELNAME

PackingUnit

REMARK

1 Drum OPC Drum x 1 250K SD-360DR 6

2 Developer Developer (1.0Kg ) x10 250K ( x 5 ) SD-360MD 1 Two packs should be changed inreplacement.(SD-360ND) x 10 = SD-360MD

3 Toner Toner Cartridge (0.93Kg ) x10 28K ( x 10) SD-360MT 1 (SD-360NT) x 10 = SD-360MT

4Upper Heat Roller Kit Upper Heat Roller

Upper Separation Pawlx 1x 4

500K SD-360UH 5

5Lower Heat Roller Kit Lower Heat Roller

Lower Separation Pawlx 1x 4

250K SD-360LH 5

6 Cleaner Blade Cleaner Blade x 10 125K ( x 10) SD-360CB 1

7 Upper Cleaning Roller Upper Cleaning Roller x 10 125K ( x 10) SD-360UR 1

8 Lower Cleaning Roller Lower Cleaning Roller x 10 125K ( x 10) SD-360LR 1

9 Waste Toner Bottle Waste Toner Bottle x 1 125K SD-360TB 5

10 Staple Cartridge Staple Cartridge x 5 5000Staple ( x 5 ) SD-LS20 10 For SD-2075/3075, SF-S53(SD-SC20) x 5 = SD-LS20

11 Convenience Parts Kit 360CP x 5 250K SD-360CK 1 (360CP) x 5 = 360CK)

(Drum Separation Pawl(Charging Plate Unit(CL Side Seal F/R(DV Side Seal F/R(Toner Receiving Seal

x 2)x 1)x 1)x 1)x 1)

@The waste toner bottle (1 pc/125K), the screen grid (250K), the charger wire (250K), the ozone filter (500K), the DV seal (500K), and the CLbrush roller (500K) are supplied as service parts.The charging plate unit (250K), the drum separation pawl (250K), and the toner receiving seal (250K) are provided as service parts though theyare sales items.

SD-2060 SUPPLIES LIST (SECL)


PackingUnit

REMARK


2 Developer Developer (1.0Kg ) x10 250K ( x 5 ) SD-360MD 1 Two packs should be changed inreplacement.(SD-360ND) x 10 = SD-360MD

3 Toner Toner Cartridge (0.93Kg ) x10 28K ( x 10) SD-360MT 1 (SD-360NT) x 10 = SD-360MT



500K SD-360UH 5



250K SD-360LH 5

6

125K Maintenance Kit Cleaner BladeWaste Toner BottleUpper Cleaning RollerLower Cleaning Roller

x 10 125K SD-360KA

5

7

250K Maintenance Kit Drum Separation PawlCharging Plate UnitToner Receiving SealDV Side Seal F/RCL Side Seal F/R

x 2x 1x 1x 1x 1

250K SD-360KB

5


2 – 3

SD-2060 SUPPLIES LIST (SEEG, SUK)


PackingUnit

EAN NUMBER REMARK

1 Drum OPC Drum x 1 250K SD-360DR 6 49 74019 05178 9

2

Developer Developer (1.0Kg ) x 10 250K ( x 5 ) SD-360MD

1

49 74019 05179 6(49 74019 051857 x10)

Two packs should be changedin replacement.(SD-360DV) x 10 = SD-360LD)

3Toner Toner Cartridge (0.93Kg) x 10 28K ( x 10) SD-360MT

149 74019 05189 2(49 74019 051864 x10)

(SD-360T) x 10 = SD-360LT)



500K SD-360UH 5 49 74019 05181 9



250K SD-360LH 5 49 74019 05182 6

6


x 1x 1x 1x 1

125K SD-360KA

5

49 74019 05183 3

7


x 2x 1x 1x 1x 1

250K SD-360KB

5

49 74019 05184 0

8 Staple Cartridge StapleCartridge

x 5 5000Staple ( x 5 ) SD-LS20 10 For SD-2075/3076, SF-S53(SD-SC20) x 5 = SD-LS20

SD-2060 SUPPLIES LIST (Asia, Latin America)


PackingUnit

REMARK


2 Developer Developer (1.0Kg ) x10 250K ( x 5 ) SD-360CD 1 Two packs should be changed inreplacement.(SD-360ND) x 10 = SD-360CD

3 Toner Toner Cartridge (0.93Kg ) x10 28K ( x 10) SD-360CT 1 (SD-360ST) x 10 = SD-360CT



500K SD-360UH 5



250K SD-360LH 5

6


x 1x 1x 1x 1

125K SD-360KA

5

7


x 2x 1x 1x 1x 1

250K SD-360KB

5


2 – 4

SD-2060 SUPPLIES LIST (SCA, SCNZ, Middle East, Africa))


PackingUnit

REMARK

1 Drum OPC Drum x 1 250K SD-360DM 6

2 Developer Developer (1.0Kg ) x10 250K ( x 5 ) SD-360LD 1 Two packs should be changed inreplacement.(SD-360DV) x 10 = SD-360LD

3 Toner Toner Cartridge (0.93Kg ) x10 28K ( x 10) SD-360LT 1 (SD-360T) x 10 = SD-360LT



500K SD-360UH 5



250K SD-360LH 5

6


x 1x 1x 1x 1

125K SD-360KA

5

7


x 2x 1x 1x 1x 1

250K SD-360KB

5


2 – 5

[3] PRODUCT OUTLINE

1. Appearance and structure

16

11

10

8

9

6 4 12 1 3 5 18 7 20 19

21222324

17 2

131514

31 25 27 28

29 26 30

3 – 1

Appearance and structure

1 Original stacker 2 Copy reception tray 3 RADF

4 Operation panel 5 Original table 6 Clip tray

7 Paper feed pressure release button (Body/RADF) 8 Manual paper feed guide 9 Manual paper feed tray

F Auxiliary tray G Power switch H Original exit section cover

I Front cover J Toner collection container section K Left side cover

L Toner box M Original alarm lamp N Original feed display lamp

O Original set table P Original guide Q Paper feed tray 1

R Paper feed tray descending button/lamp S Paper feed tray 2 T Paper feed tray 3

U Fusing section V Transport section open/close lever W Photoconductor drum

X Main Charger Y Duplex tray section Z Developer unit and lock lever

[ Roller rotation knob

2. Operation panel

1 Copies selected display 2 Covers/Inserts key and indicator 3 Margin shift key and indicator

4 Erase key and indicator 5 Dual page copy key and indicator 6 Auto Image key

7 Message display 8 Scroll display key 9 Infornation key and indicator

F Copies made display G Interrupt key and indicator H Program (P) key

I Clear all (CA) key J Original to copy key and indicators K Transparancy inserts key and indicator

L Change key M Zoom keys N Reduction, 100% and enlargement keys

O Staple sort key and indicator P Sort/Group key and indicators Q Exposure keys

R Tray select key S 10-Key pad T Clear/stop key

U Start key and indicator

2 31

5 64

8 97

0 CAUDITCLEAR

P

CA

100%

2 5 3 410 11213 81718 614

1920 21 7 9 22 23 24 2511 16 15

1 1

1 21

2 2

1 2 2

SORTER ORIGINAL TO COPY

SORTGROUP

STAPLESORT

(ORIGINALS)EVEN NUMBER

ODD NUMBER

PRE-COUNTORIGINAL

AUTO IMAGE

REDUCTION ENLARGEMENT

ZOOM

EXPOSURE

LIGHT DARK

AUTOMANUALPHOTO

100%

AUTO

COPY RATIO

EXPOSURE

READY TO COPY

2

31

8½ x 11AUTO SELECT

2.8½ x 11R

3.11 x 17

1.8½ x 11

SCROLL DISPLAY

INFORMATION

TRAY SELECT

PROGRAM

CLEAR ALL

INTERRUPT

CLEAR/STOP

START

COPIES SELECTED COPIES MADE

SPECIAL MODES

MARGIN SHIFT DUAL PAGE COPY

ERASE COVERS/INSERTS

CHANGE

TRANSPARENCY/

INSERTS

3 – 2

3. Internal structure

1 No. 2 mirror 2 No. 3 mirror 3 No. 1 mirror4 Copy lamp 5 Lens unit 6 Main charger unit7 Blank lamp 8 No. 6 mirror 9 No. 4 mirrorF No. 5 mirror G Toner hopper H Developer unitI Resist roller J Transfer charger K Photoconductor drumL Separation charger M Drum separation pawl N Cleaner unitO Suction unit P Suction belt Q Upper heat rollerR Lower heat roller S Heater lamps T Lower separation pawlU Upper separation pawl V Sub cleaning roller W Fuser thermistor/thermostatX Paper exit separation gate Y Manual feed takeup roller Z Manual paper feed roller[ Manual feed separation roller \ Transport roller ] Transport roller^ Transport roller _ 2000-sheet tray paper feed belt . 2000-sheet tray transport rollera Duplex copy tray transport roller b Upper 1000-sheet tray transport roller c Upper 1000-sheet tray paper feed beltd Lower 1000-sheet tray transport roller e Lower 1000-sheet tray paper feed belt f Paper exit transport rollerg Paper exit transport roller h Fuser transport roller i Decurling beltj Reverse section transport roller k Reverse section transport roller l Duplex copy tray transport rollerm Duplex copy tray transport roller n Lower cleaning roller o Upper cleaning rollerp Duplex copy tray paper feed belt q Lower cleaning roller r Paper exit rollers RADF Belt drive roller t RADF transport belt u RADF Belt follower rollerv RADF resist roller A w RADF paper feed roller é RADF takeup rollerâ RADF resist roller B ä RADF Belt tension roller A à RADF Belt tension roller Bå RADF Belt tension roller C ç AE sensor

15

16 14 52

21

53 54

6355 64

56 62

63 57 61

58 59 60

1 3 425 2651 27 2 65 5 18 6 7 8 12 13 10 9 32 11 30 29 31

35

36

33

37

38

34

40

41

39171920502322244948

46

47

45

28

43

42

44

3 – 3

4. Clutches and solenoids

Signal name Name Function and operation1 TRC1 Transport roller clutch 1 Transport roller (paper feed tray) rotation2 TRC2 Transport roller clutch 2 Transport roller (in front of the resist roller) rotation3 RRC Resist roller clutch Resist roller rotation4 TBC1 Paper feed belt clutch 1 2000-sheet tray paper feed belt rotation5 TBC2 Paper feed belt clutch 2 Upper 1000-sheet tray paper feed belt rotation6 TBC3 Paper feed belt clutch 3 Lower 1000-sheet tray paper feed belt rotation7 DBC Duplex copy paper feed belt clutch Duplex copy tray paper feed belt rotation8 DTRC Duplex copy transport roller clutch Duplex copy tray transport roller rotation9 DGS1 Paper exit/reverse select solenoid 1 Paper exit/reverse select gate ON/OFFF MPFC Manual paper feed clutch Multi-copy manual paper feed roller rotationG TVVS1 Paper feed suction valve solenoid 1 2000-sheet tray paper feed suction valve open/closeH TBVS1 Paper feed blower valve solenoid 1 2000-sheet tray paper feed blower valve open/closeI TVVS2 Paper feed suction valve solenoid 2 Upper 1000-sheet tray paper feed suction valve open/closeJ TBVS2 Paper feed blower valve solenoid 2 Upper 1000-sheet tray paper feed blower valve open/closeK TVVS3 Paper feed suction valve solenoid 3 Lower 1000-sheet tray paper feed suction valve open/closeL TBVS3 Paper feed blower valve solenoid 3 Lower 1000-sheet tray paper feed blower valve open/closeM MPFS Manual paper feed solenoid Multi-copy paper feed takeup roller pressingN PSPS Drum separation pawl solenoid Drum separation pawl pressingO PSBRK Transport brake clutch Paper feed transport brake ON/OFFQ DVVS Duplex copy suction valve solenoid Duplex copy tray suction valve open/closeR DBVS Duplex copy blower valve solenoid Duplex copy tray blower valve open/closeS DGS2 Duplex copy reverse gate solenoid 2 Duplex copy/reverse select gate ON/OFFT DSS Original stopper solenoid Original stopper ON/OFFU DTB (RADF) original transport brake clutch (RADF) original transport brake ON/OFFV DRSOL (RADF) original reverse gate solenoid (RADF) original reverse gate ON/OFFW DFSS Duplex copy paper lead edge stopper solenoid Duplex copy paper lead edge stopper ON/OFF

11

12

10

23

24 9 18 3 1719 2

4

114 13 1516 6 5 7

22

21

2526

27

8

3 – 4

5. Sensors

3032 31

52 51 53 12 340 5410 5

35

34

16

13

33

27

7

6

12

11

28

19

37

42

46 50 43 47204844 49 45 814 15 2117 18

41 26

70 66 69 63 62 64 61

65 60

5957 56 55 58

6768

38924 257129

23

36

39

4

22

3 – 5

Signal name Name Function and operation1 MSW AC power switch For turning ON/OFF the AC power switch.2 DSW1 Door switch 1 For 38V line. L4 display at OFF.3 DSW2 Door switch 2 For 24V line. CH display at OFF.4 DDSW Duplex copy tray switch Duplex copy reversing section door switch5 HL ILSW Fuser interlock switch For the heater lamp power line.6 PFD1 Paper feed sensor 1 For detection of paper entry from paper feed tray 17 PFD2 Paper feed sensor 2 For detection of paper entry from paper feed tray 28 PFD3 Paper feed sensor 3 For detection of paper entry from paper feed tray 39 PSD Paper separation sensor For detection of paper transport after transfer and separation in the process sectionF POD Paper exit sensor For detection of paper transport after fusingG MPED Manual feed paper empty sensor For detection of paper presence in the manual feed sectionH MPFD Manual paper feed sensor For detection of paper entry in the manual feed sectionI TLMD1 Paper feed tray upper limit sensor 1 For detection of the upper limit of the paper feed tray 1J TLMD2 Paper feed tray upper limit sensor 2 For detection of the upper limit of the paper feed tray 2K TLMD3 Paper feed tray upper limit sensor 3 For detection of the upper limit of the paper feed tray 3L TUD1 Paper feed tray rising sensor 1 For detection of the upper limit of paper in the paper feed tray 1M TUD2 Paper feed tray rising sensor 2 For detection of the upper limit of paper in the paper feed tray 2N TUD3 Paper feed tray rising sensor 3 For detection of the upper limit of paper in the paper feed tray 3O DPPD Duplex copy tray paper transport sensor For detection of paper entry from the switchback unitP DTPD Duplex copy tray paper sensor For detection of paper presence in the duplex copy trayQ DTW HPS Duplex copy tray width guide home position sensor For detection of duplex copy tray paper width guide home positionR DTBHPS Duplex copy tray rear edge guide home sensor For detection of duplex copy tray rear edge guide home positionS DPFD Duplex copy tray paper feed sensor For detection of paper entry from duplex copy trayT LHP Lens home sensor For detection of lens home positionU MBHP No. 4/No. 5 mirror home sensor For detection of No. 4/No. 5 mirror home positionV MHP No. 2/No. 3 mirror home sensor For detection of No. 2/no. 3 mirror home positionW PPD1 Paper transport sensor 1 For detection of paper transport from paper feed tray 3X PPD2 Paper transport sensor 2 For detection of paper transport from each paper feed unitY PPD3 Paper transport sensor 3 For detection of paper in front of the resist rollerZ MPSD1 Manual feed tray paper size sensor For detection of manual feed paper length[ MPSD2 Manual feed tray paper size sensor For detection of manual feed paper length\ MDOP Manual feed tray open/close sensor] TPTD1 Paper feed tray PT sensor 1 For detection of paper feed tray 1 lift motor rotation (Remaining paper quantity display)^ TLD1 Paper feed tray lower limit sensor 1 For detection of the lower limit of paper feed tray 1_

TSW1Paper feed tray switch 1 Paper feed tray 1 ON: Paper present, OFF: Paper empty, Blink: Tray is rising or

descending.. DPID Duplex copy tray paper entry sensor For detection of paper entry to the duplex copy traya DSBD Reverse unit paper entry sensor For detection of paper entry to the reverse unitb PCS Process control sensor Reads patch density on the photoconductor surface.c TNF Waste toner full sensor For detection of waste toner fulld POD2 Paper exit sensor 2 For detection of paper exite TFD Copy reception tray full sensor When tray full is detected, the machine will halt after completion of the current copy cycle.f TB BOX Waste toner bottle sensor For detection of waste toner bottle.g PS21~26 Paper feed tray paper size sensor (in PWB) Paper size is judged by resistance value on the PWB.h TLD2 Paper feed tray lower limit sensor 2 For detection of the lower limit of paper feed tray 2i TPTD2 Paper feed tray PT sensor For detection of paper feed tray 2 lift motor rotation (Remaining paper quantity is displayed.)j TSW2 Paper feed tray switch 2 Paper feed tray 2 ON: paper present, OFF: paper empty, Blink: Tray is rising or descending.k PS31~36 Paper feed tray paper size sensor (in PWB) Paper size is judged by resistance value on the PWB.l TLD3 Paper feed tray lower limit sensor 3 For detection of the lower limit of paper fed tray 3m TPTD3 Paper feed tray PT sensor 3 For detection of paper feed tray 3 lift motor rotation (Remaining paper quantity is displayed.)n TSW3 Paper feed tray switch 3 Paper feed tray 3 ON: paper present, OFF: paper empty, Blink: Tray is rising or descending.o TES Toner empty sensor For detection of remaining toner quantity in the toner hopperp TNCS Toner density sensor For detection of toner density in the developerq TNCTR Toner cartridge switch For detection of hopper cover open when supplying tonerr FUSUR Fuser unit installation sense switch As the fuser unit lock is released, HL power supply line is turned off.s DFMRS Original paper feed motor rotation sensor For detection of original paper feed (A) motor rotationt DTMRS Original transport motor rotation sensor For detection of original feed (B) motor rotationu DEMRS Original exit reverse motor rotation sensor For detection of original exit reverse (C) motor rotationv DLS1 Original length sensor 1 For detection of original length (on the tray)w DLS2 Original length sensor 2 For detection of original length (on the tray)é DWD Original width sensor For detection of original width (Judged from resistance value of VR.)â DSD Original set sensor For detection of original setä DRS Original resist sensorà DTS Original timing sensorå DWLS Original length sensor (light emitting) When originals of a same width are fed at random, the original length is detected by the

light interruption sensor.ç DWRS Original length sensor (Light receiving)

ê RDD Original exit reverse sensor For detection of an originalë SSW Stream mode switch SADF/ADF specifications mode select switchè TPSW Thin paper mode switch Thin paper mode/normal paper mode select switchï AUOD ADF open/close switch For detection of ADF unit open/closeî TGOD Reverse guide open/close switch For detection of reverse section open/closeì DMS Drum marking sensor For positioning of patch formation in the process control operation

3 – 6

6. Motors

Signal name Name Function and operation Type

1 MM Main motor Drives the main body. DC brushless

2 DM Drum motor Drives and rotates the photoconductor drum. DC brushless

3 TBFM Paper feed blower fan motor Prevents against double paper feed DC brushless

4 TVFM Paper feed suction fan motor Suction for paper transport DC brushless

5 MIRM Mirror motor For mirror base scanning DC brushless

6 LM Lens motor Shifts the lens base. DC stepping

7 MBM Mirror base motor Shifts No. 4/5 mirror base. DC stepping

8 DSBM Duplex copy switchback motor Paper transport direction selection DC stepping

9 DBM Duplex copy rear edge guide motor Shifts the rear edge guide plate. DC stepping

F DWM Duplex copy alignment plate motor Shifts the alignment plate. DC stepping

G TM1 Toner motor 1 Supplies toner from the toner hopper to the developer unit. DC synchronous

H TM2 Toner motor 2

I TLM1 Tray lift motor 1 Lifts 2000-sheet paper feed tray base plate. DC brush

J TLM2 Tray lift motor 2 Lifts 1000-sheet paper feed tray (upper) base plate. DC brush

K TLM3 Tray lift motor 3 Lifts 1000-sheet paper feed tray (lower) base plate. DC brush

L CFM1 Cooling fan motor 1 Cools the optical section. DC brushless

M CFM2 Cooling fan motor 2 DC brushless

N SFM Suction fan motor Suction for paper transport. DC brushless

O PFM Process fan motor Ventilation around the process unit DC brushless

P FFM Fusing fan motor Ventilation around the fuser unit DC brushless

Q PSFM Power supply fan motor Ventilation around the power supply DC brushless

R VFM Ventilation fan motor Ventilation in the optics DC brushless

S DFM Original feed motor (A) Drives the original feed section DC brushless

T DTM Original transport motor (B) Transports originals. DC brushless

U DEM Original exit/reverse motor (C) Drives the original exit/reverse section. DC brushless

2524

23

16

17

5

20

19

18

19

22

213

4

2

11

12

15

13

14

7

6

10

8

3 – 7

7. PWB unit list

Name Country version Remark1 DC power circuit PWB 100V/200V DC power supply

2AC power circuit PWB Japan 15A/Japan 20A/

Overseas 100V/Overseas 200VAC power input

3 Process control PWB 100V/200V4 Main control PWB Common Main body control

5Operation control PWB

Japan/SEEG/Overseas (@)Operation input, display control (@)English, German, French

6 Manual feed paper size sensor PWB Common Paper size sensing7 Paper feed tray size sensor PWB Japan/Overseas AB/INCH Paper size sensing8 Paper feed tray size sensor PWB Japan/Overseas AB/INCH Paper size sensing9 Paper feed tray switch PWB CommonF Paper feed tray switch PWB CommonG Paper feed tray switch PWB CommonH Discharge lamp PWB Common Discharge lamp driveI Blank lamp PWB Common Blank lamp controlJ AE sensor PWB Common Original density automatic exposure sensingK Light quantity correction PWB Common Used for dirt correctionL Option memory PWB SD-3075/3076 common For the Auditor M Commander I/O PWB Common For connection with the SF-EA13N Operation PWB 1 Common Operation input, displayO Operation PWB 2 Common Operation input, displayP Paper feed tray motor PWB 100V/200V Paper feed tray lift motor protection circuitQ High voltage unit PWB 100V/200V Process high voltage developer bias voltage supplyR RADF control PWB Common RADF controlS RADF display PWB Common RADF displayT LCD display invertor PWB Common LCD display power source (for back light)U LCD unit PWB Common Display unit

23

4

20

21

1 2 78

3

6

9

10

11

13

5 12 14 1517 18 192425

22

16

3 – 8

[4] PROCESS(Photoconductor drum and cleaningunit)

1. Basic theory

With the indirect static copier, a plain paper is used for the copypaper. As a latent static image is formed on the surface of the pho-toconductor, the image is then developed into visible (toned) imageusing the toner. Then the toner is transferred onto the copy paper.The plain paper copier (PPC) has six basic processing steps of co-rona charge, exposure, development, transfer, cleaning, and dis-charge. The cleaning step prepares the photoconductor surface forrepeated use.

(1) Image forming process

1 Corona charges the photoconductor.

2 The photoconductor is exposed to light to form a static latentimage.

3 Toner is attracted to the static latent image.

4 The toner on the drum is transferred onto the copy paper.

5 Toner remaining on the photoconductor (residual toner) is re-moved.

6 The charge remaining on the photoconductor surface (residualcharge) is removed.

(2) PhotoconductorWhile some materials conduct electricity, others do not. Materials,therefore, can be put into three categories of conductor, semiconduc-tor, and insulator.For these categories are conceptual, distinct classification is difficult.Generally, the following is applied.Material whose specific resistance is over 103Ωcm is called an insula-tor and under 10–3Ωcm is called a conductor.Those which existing between the two is normally called semiconduc-tor.A Conductor always has the electrical conductivity, while semicon-ductor does not. But, it may become conductor under certain condi-tions.The photoconductor used in copiers is an insulator when not exposedto light, but its electrical resistance abates when exposed to light.When exposed to light, the photoconductor surface becomes conduc-tive. Material having the property to become conductive in light (photoconductive phenomenon) is a photoconductor or photosemiconduc-tor.

(3) Types of photoconductorsThe principal materials of a photoconductor are zinc oxide (ZnO),amorphous selenium (amorphous Se), selenium alloy, cadmium sul-fide (CdS), amorphous silicon (amorphous Si), and organic pho-toconductor (OPC).

Described next are structures of the photoconductors we have usedup to now.

Zinc oxide (ZnO) master

Cadmium sulfide (CdS) drum

Organic photoconductor (OPC) master and drum

Selenium (Se) drum

1

2

3

4

5

6

Charging

Exposure

Developmewnt

Transfer

Cleaning

Discharge

Photoconductor

HV

CTL

CGL

Base

Dark area Dark areaLight

Theory of photoconduction

Amorphous selenium(amorphousSe)

Selenium alloy

Zinc oxide(ZnO)

Cadmium sulfide(CdS)

Amorphous silicon(amorphous Si)

Organic photoconductor(OPC)Organic photoconductor

Inorganic photoconductor

Photoconductive layer (zinc oxide layer)Intermediate layerPaperBack coating paper

Base paper

PET layerMicro space layerPhotoconductive layer (CdS layer)Aluminum layer

Charge traffic layerCharge generation layer

Opticalconductivelayer(OPC layer)

Aluminum layer

(selenium layer)Photoconductive layer

Aluminum layer

4 – 1

Characteristics of organic photoconductors

• Permits a variety of structures (drum, sheet, belt)

• Higher insulation in dark area (charge acceptability and retentivity)

• Permits a variety of molecular structure (allows a variety of molec-ular design)

• Light weight

• Stable against humidity and temperature

• Safety for environment (non-pollution, unrestrained disposal)

• Not strong in anti-wear property

• Not strong against light and ozone.

(4) Characteristics of photoconductorMentioned next is the general characteristics important to use for thephotoconductive material.

1. Photo-sensitivity 2. Spectrum characteristics3. Acceptor potential 4. Charge retentivity5. Residual potential 6. Fatigue

[Photo-sensitivity]This is dependent on the attenuation speed of the potential when thephotoconductor is exposed to light.

[Spectrum characteristics]Wave length of the light differs by the kind of the photoconductor.

Relationship between color and wave lengthLight having a wave length of 380mm through 780mm can be recog-nized by human eyes, which is called visible light. Wave lengthshorter than that is called ultraviolet light and longer than that iscalled infrared light. The figure below shows the relationship betweenthe wave length of light and color.

[Acceptor potential]The resistance in the dark area of the photoconductor decreased asthe electric field increases among layers.As the electric field is formed to a higher value as the photoconductoris charged, the resistance in the related layer decreases and the rateof charge retained in the photoconductor is restricted. The potential ofthe photoconductor in this instance is called acceptor potential whichis the important factor to determine the potential contrast. To avoidgiving electrical distortion in the photoconductor, charge is normallymade to a level slightly lower than the acceptor potential.

[Charge retentivity]The time the static latent image is held by the photoconductor de-pends on the speed at which the potential decreases in the dark area.For this, measure the time the photoconductor potential abates to ahalf of the starting value in the dark area. This charge retentivity maycause a problem when the time from the exposure to the develop-ment is long. But, it may not be a problem with the machine where aseries of operations from charge, exposure, and development areautomated and time between processes is shorter.

[Residual potential]When the charged photoconductor is exposed to light, the potentialabruptly diminishes at first, then begin decaying relatively slowly. Thepotential of the photoconductor where slow decay starts is calledresidual potential. For a less residual potential produces a large po-tential contrast, low residual charge is preferable.The value of the residual potential affects largely to the developmentof gradual tone.

[Fatigue]If charge and exposure are repeated, the phenomenon called pho-toconductor fatigue occurs. In other words, it appears as an increaseof the decay speed of the photoconductor potential or a decrease inthe charge retentivity.

Now, we have learned about the characteristics required for chargingof the photoconductor. If charge is repeated from the corona unit inthe actual operation, the corona wire is likely to be contaminated withdust, stain, and scattered toner, causing uneven corona charge. Toavoid this, the corona wire needs to be cleaned well.

1.0

400

0.8

0.6

0.4

0.2

500 600 700 800

Se:Te

OPC

Amorphous silicon

Sp

ect

rum

se

nsi

tivity

(re

lativ

e v

alu

e)

WavelengthSpectrum sensitivity

350 400 450 500 550 600 650 700 750 800

Blue green

Vio

let

Blu

e

Gre

en

Yel

low

Ora

ng

e

Red InfraredUltraviolet

4 – 2

2. SD-2060 basic process andstructure

• The Scorotron method is used to evenly charge the photoconduc-tor surface to the given potential in the charge process. The co-rona wire regularly used is now replaced with a new corona chargemechanism that employs the 0.1mm thick stainless steel saw toothplate, in order to suppress ozone generated when the oxide mole-cule in the air is ionized.

• Considering the service efficiency, the process separation mecha-nism is adopted.

(1) Details of image forming process

STEP 1. ChargingThe main corona creates a negative charge on the OPC drum sur-face. The surface potential of the OPC drum is controlled by the screengrid voltage to maintain at the potential equal to the grid voltage.

• When the drum surface voltage is lower than the screen grid volt-age, electric charges from the main corona pass through thescreen grid to reach the drum surface and charge it until the drumsurface voltage becomes equal to the grid voltage.

• When the drum surface voltage reaches almost the same level asthe grid voltage, electric charges from the main corona flowthrough the electrode of the screen grid to the high voltage unitgrid voltage output circuit, thus maintaining the drum surface volt-age at the same level as the grid voltage.

STEP 2. Exposure (Copy lamp, mirror, lens)The optical image of an original is projected through the mirror andlenses onto the OPC drum surface by the copy lamp. The resistanceof the OPC layer reduces in the bright area (light area on the original)to discharge negative charge, forming an electrostatic latent image onthe drum surface. In reduction copy, the non-image area of the image is discharged bythe BL (blank lamp) before exposure.

STEP 3. Development (Bias –200V)The electrostatic latent image on the drum surface is formed into avisible image by the toner. This copier employs the two-componentmagnetic brush development system, where a bias voltage of –200Vis applied to the carrier (MG roller) and the toner is charged positivelyby friction with the rotating carrier.

STEP 4. PretransferThe PTCU positive corona discharge is applied to the drum surfaceafter development to improve transfer efficiency.This weakens the attracting force between the drum and toner, im-proving transfer efficiency and separation efficiency.

Screen grid

Grid voltageoutput section

Main coronaoutput section

High voltageunit

Exposure

Exposure(Copy lamp)

OPC layer

Pigment layer

Aluminum(Drum)

Dark area Light area Dark area Light area

N

S

S

N

N

-200V

Carrier

Toner

N

S

S

N

N

-200V

Carrier

Toner

4 – 3

STEP 5. TransferThe visible image on the drum surface is transferred on to the copypaper. A negative charge of the transfer corona is applied to the rearsurface of the copy paper to transfer the toner on the drum surface tothe copy paper.

STEP 6. SeparationThough the copy paper and the drum are both negatively chargedafter transfer, the negative potential on the drum is higher than thaton the copy paper, generating an attraction force between the drumand the copy paper. To remove the attraction force, AC corona isapplied to the copy paper by the separation corona to raise thepotential on the copy paper to the same level as the drum surfacepotential. Resultantly the attraction force is eliminated and the copypaper is separated from the drum. If the paper is not separated fromthe drum, the separation pawl works to separate it mechanically.

STEP 7. CleaningResidual toner on the drum is collected by the cleaning blade.

STEP 8 . DischargeThe electric resistance of the OPC layer is reduced by radiation fromthe discharge lamp over the drum to remove residual charges.

Photo modeThe photo mode is provided to make clear half-tone copy of the photooriginals. In the photo mode, the grid voltage and the copy lamp voltage arelower than in the standard copy mode (the copy density of the blackbackground is lowered) to provide half tone graduations of the copy.

(2) Relationship between the OPC drum and lightThe light exposed is absorbed by the charge carrier generation layer(CGL) to generate the charge carrier and moves towards the chargecarrier transport layer (CLT). The carrier reached CTL then movestowards the drum surface through CTL to neutralize the surfacecharge.

Toner

Copy paper

Paper guide

High voltage unit

AC4KV

Separationpawl

Copy paper

Separation coronaoutput section

High voltage unit

Cleaner blade

Residualtoner

Discharge lamp

(Dark)

Copy density

(Light)

Gradation is increased toprovide larger expressionwidth of half tone.

Original density (Dark)

Normal copy mode

Photo mode(The copy density ofblack background isdecreased.)

CTL

CGL

Grid

4 – 4

(3) Transition of photoconductor surface potential

(4) Drum membrane decrease correctionIn the SD-2060, fall in sensitivity due to long use of the photoconduc-tor drum is corrected by the copy lamp light intensity to preventagainst considerable change in copy quality. The drum membrane decrease correction is performed because thedrum is affected by the following:

-800V

-200V

BL DLCharge Exposure Develop Transfer Separate Clean

Dark area

Developing bias voltage

Light area

Residual potential

PTC

-700V

OPC drum

CTL

CGL

CTL

CGL

Sim46

CLV

10 2 3 4 5 14 15 16

Change in the thickness of the carrier transport layer (CTL).Wear from the developper.Wear from the cleaner blade.

(NEW) (USED)

Drum rotating time(1 count/approx. 4.4h)

The copy lamp voltage is increased every16,000 seconds (4.4 hours) of drum cyclingtime by a value with in the software.

4 – 5

(5) Process Control function

[Summary]The Process Control function records the density of the standardtoner image formed on the photoconductor, and maintains that stan-dard density, thereby ensuring consistent copy quality. This is accom-plished by regularly checking the image density on the photoconduc-tor surface and compensating for any deviation from the standarddensity by varying the MC grid bias voltage output. The exposure isalso corrected according to the change in the high voltage output tostabilize the half-tone areas of the copy image.

Process Control

1 Three toner patches are developed on the photoconductor surfaceat three different MC grid bias voltage levels. These three patchesare developed using the Photo mode high voltage output calcu-lated the last time Process Control was performed.

The voltage values of the three patches are:1. Photomode voltage (This is the center value and is referred to

as Vg (P))2. Photomode voltage +50v (Vg (P) +50v)3. Photomode voltage -50v (Vg (P) -50v)

MC GRID BIAS VOLTAGE

2 The Process Control Sensor reads the three toner patches andthe bare drum, and uses this ratio to determine the Standard level.(The Standard level is the reference value that must be achievedduring Process Control to ensure proper copy quality. This Stan-dard level is preset at the factory and is a result of the valuestored in Test Command 44-4).

Note: The value stored in Test Command 44-4 should be 75.

In the SD-2060, the absolute value of the Process Control Sensoris not used for control calculation, but the ratio of the sensoroutput from the bare drum and the sensor output from the tonerpatch is used.This will allow for correct density compensation when the reflectiv-ity of the drum is affected by dirt or drum deterioration.

3 At this time the Standard level is referenced, and three possibleconditions will exist.a If the Standard level falls between the three patch values:

The proper MC grid bias voltage is determined in Fig. A.

MC GRID VOLTAGE

R

F

Main control PWBProcess densitysensor PWB

I/O MC gridoutput selection

Density detectionlevel setting(VR1)

High voltage PWB

MC grid biasoutput (densitycorrection)in each mode

(Light quantity correction)

CPU density judgementLight quantity correctioncalculation

Vg(p)-50

Vg(p)

Vg(p)+50

50V

BV

PV

Bias

123

123

(t)

1IDPAT =PV 1 x 216

2IDPAT =PV 2 x 216

3IDPAT =PV 3 x 216

1BASE =BV 1 x 216

2BASE =BV 2 x 216

3BASE =BV 3 x 216

1

2

3

50V

SurfaceTonerimage Surface Surface

Tonerimage

Tonerimage Surface

Drum 1/2 rotation 2/2 rotation 3/2 rotation

Time

PV=Patch voltageBV=Base voltage(bare drum) BV

PVx 216=value in TC44-4

Standardlever

Proper MC grid bias voltagedetermined by process control

Vg(p)-50

Vg(p)

PVBV

Vg(p)+50

Fig A

4 – 6

b If the range of the three developed toner patches is lower thanthe Standard level:Two more toner patches are developed with the voltage valuesof Vg(P)+100v and Vg(P)+150v, as shown in Fig. B. The pur-pose of developing two more patches is to bring the tonerpatch range up to the Standard level. If the toner patch rangeis still not at the Standard level, two more toner patches aredeveloped with the voltage values of Vg(P)+200 andVg(P)+250. If still another step is required, the toner patchesare developed with the voltage values of Vg(P)+300 andVg(P)+350. If the Standard level is achieved during any ofthese steps, the proper MC grid bias is determined, and thetoner patch process is discontinued. If the Standard level is stillnot achieved after these four sets of toner patches (1 set of 3patches and 3 sets of 2 patches), then an F2-35 condition willoccur.

MC GRID VOLTAGE

c If the range of the three developed toner patches is higherthan the Standard level:Two more toner patches are developed with the voltage valuesof Vg(P)-100v and Vg(P)-150v, as shown in Fig. C. The pur-pose of developing two more patches is to bring the tonerpatch range down to the Standard level. If the toner patchrange is still not at the Standard level, two more toner patchesare developed with the voltage values of Vg(P)-200 and Vg(P)-250. If still another step is required, two more toner patchesare developed with the voltage values of Vg(P)-300 and Vg(P)-350. If the Standard level is achieved during any of thesesteps, the proper MC grid bias is determined, and the tonerpatch process is discontinued. If the Standard level is still notachieved after these four sets of toner patches (1 set of 3patches and 3 sets of 2 patches), then an F2-35 condition willoccur.

MC GRID VOLTAGE

4 When the MC grid bias voltage is corrected by the Process Con-trol Sensor, the corresponding light quantity is also calculated tocontrol the copy lamp output.

Process Control timing

In the SD-2060, Process Control is performed at the followingintervals:1 When the power switch is turned on.2 When the accumulated copy time reaches 30 minutes.

If the timer reaches 30 minutes during copying, Process Con-trol is performed during copying.If the timer reaches 30 minutes after copying, Process controlis performed during the next copy preliminary rotation.

3 When the Stand-by time reaches 1 hour. Process control isperformed during the next copy preliminary rotation.

4 When Test Command 46 is performed.

Step1

Step2

Step3Standardlever


Vg(p)-250

Vg(p)-200

Vg(p)-150

Vg(p)-100

Vg(p)-50

Vg(p)

Vg(p)+50

PVBV

Step1 - 3patches developedStep2 - 2patches developedStep3 - 2patches developedStep4 - (Not needed in this case) IF needed-2patches developed

First 3patches

Fig C

Step3

Step2

Step1

Standardlever


Vg(p)-50

Vg(p)

Vg(p)+150

Vg(p)+200

Vg(p)+250

PVBV

Step1 - 3patches developedStep2 - 2patches developedStep3 - 2patches developedStep4 - (Not needed in this case) IF needed-2patches developedVg(p)+50

Vg(p)+100

First 3patches

Fig B

4 – 7

4 Operation of process control

Drum markingIn the SD-2060, a toner patch image is formed in the same positionon the photoconductor drum surface to improve the accuracy of theprocess control. A marking is provided on the drum, and the marking is sensed beforeforming a toner patch image. If the marking is not sensed, the ma-chine stops its operation and indicates "F2-32" trouble.(This is for Japan/SEC specifications. For the other destinations, themachine does not stop.)

Yes

Is the standardlevel within the range ofthese 3 toner patches

3 toner patches are developed on thedrum at the following levels1) Photo mode voltage Vg(P)2) Vg(P) +50V3) Vg(P) -50V

*Vg(P) : Grid voltage output in photo mode (Center value of first 3 patches)

2 additional toner patches aredeveloped at the following levels1) Vg(P) +100V2) Vg(P) +150V

No


Is the toner patch range higher or lower

than standard level

2 additional toner patches aredeveloped at the following levels1) Vg(P) +200V2) Vg(P) +250V


No

Lower

2 additional toner patches aredeveloped at the following levels1) Vg(P) -100V2) Vg(P) -150V

No


2 additional toner patches aredeveloped at the following levels1) Vg(P) -200V2) Vg(P) -250V


NoF2-35 Trouble(It can make copies withlast correction level)

Proper MC GRID biasvoltage is obtained

Higher

No

Yes

YesYes

F

R

4 – 8

3. Basic structure

Photoconductor drum: The 100mmφ OPC drum is used.

Blank lamp: The non-image area is exposed by thelight from the blank lamp to erase the pos-itive potential outside the drum CTL. Dis-charge lamp:Eight bulbs cast light over the drum sur-face to erase the positive potential in CTL.

Cleaning mechanism: The cleaning blade removes the toner re-maining on the drum surface. The bladealways rests on the drum surface.

Main corona: The saw tooth corona charge method isused. Use of the screen grid maintains theeven charge potential over the pho-toconductor surface.

Enforced separation mechanism:

Using two separation pawls, any copypaper that adheres to the drum surface isforced to separate from the drum surface.

Waste toner transport mechanism:

To enhance the toner transport efficiency,toner backup is avoided by setting thewaste toner transport path downward.

4. Optical system dirt correction

In the SD-2060, exposure density is corrected by changing the copylamp light quantity depending on dirt in the optical system (the copylamp unit, No. 1 mirror, No. 2 mirror, No. 3 mirror).The optical system dirt correction is performed as follows:

(1) Setting the reference value for optical system correction.

1 Clean the optical system at every maintenance.

2 Perform Simulation 44-3.(The previous data are cleared.)Light is emitted from the copy lamp at 70V to the reference whiteplate provided in the optical system unit, and the sensor output forthe reflected light is registered.

(2) Dirt correction

Reference plate (Glass holder) Table glass

Copy lamp light quantity correction

Sensor

CPU reference value lightquantity judgmentLight quantity outputselection


Sensor

CPU reference valueregistration


Copy lamp light quantity correction

Sensor

CPU reference value lightquantity judgmentLight quantity outputselection

4 – 9

1 Correction is made when the power is turned on.

2 Light is emitted from the copy lamp at 80V, 75V, 70V, .... 45 to thereference white plate provided in the optical system unit, and thecopy lamp voltage which is the reference value is abtained.

3 The ratio of the obtained copy lamp voltage to the copy lampvoltage (70V) at registration is calculated to correct the exposurecopy lamp voltage in each mode.

4 – 10

[5] DEVELOPING UNIT

1. Basic theory

(1) Two-component developerTwo component developer consists of toner and carrier, and is usu-ally called developer.The carrier is a media that applies toner to the static latent image onthe photoconductor.As the carrier is stirred with the toner, the friction that occurs chargesit to positive or negative potential.Because over time, the developer fatigues and affects its characteris-tics that deteriorates the copy quality, it needs to be replaced at agiven period.

(2) Two-component magnetic brush developmentA rotary, non-magnetic sleeve is provided over the magnet rollerwhich rotates during the copy cycle.A magnetic brush is formed with the carrier on the sleeve surface bymagnetic force, which allows toner to be attracted to the latent elec-trostatic image on the photoconductor.

(3) Developing bias voltageWhen the photoconductor is exposed to light, the surface potential(voltage) of the photoconductor is not removed completely and re-mains as a residual potential. Therefore, the toner adhered to thephotoconductor by the residual potential creates background in thenon-image areas.To prevent this, a voltage of the same charge as the photoconductorsurface and which is higher than the residual potential is added to themagnetic roller to avoid the toner from remaining on the pho-toconductor surface.

2. Structure

No. Name

1 Developer magnetic rollerMagnetic brush is formedwith the carrier by amagnetic force.

2 Developer doctor plateA plate employed to limit theheight of the magneticbrush.

3 Developer stirring rollerCarrier within the developingunit is stirred to distributethe toner evenly.

4 Developer transport rollerThe toner fed from the tonerhopper is supplied to thestirring unit.

5 Toner density sensorUsed to detect the density ofthe toner contained in thedeveloper.

3. Operation

When the SD-2060 power is turned on, the machine goes into thewarmup mode. When the fusing temperature reaches a certain level,the drum drive motor rotates.The developer unit is driven by the main motor via the main drive unit.Ratio of the carrier and the toner within the developing unit is moni-tored by the toner density sensor as a change in the magnetic trans-mission rate and the voltage is sent to the analog input line of theCPU of the main board.In the CPU, the input voltage level is monitored and the main motorand the toner motor is controlled until the optimum density is ob-tained. Then the toner is supplied, transported, and stirred.

++

+++

+

DV BIAS-200V

MG roller

TonerCarrier

Developing bias voltage

Residual potential<DV BIAS

1

2 3 4

5

5 – 1

[6] PAPER FEED/TRANSPORTSECTION

1. Basic specifications

The SD-2060 employs a paper tray lifting system in each paper feedsection to hold a large quantity of papers in a compact space, and anair paper feed system to feed paper, preventing against double feedand/or smudging. If paper of the same size and same weight are set in paper feed trays1 ~ 3, when paper is emptied from one of the trays, the continuouspaper feed function switches automatically to another paper tray. After image transfer, the paper is separated from the drum surfaceand sent to the fusing section by the transport belt. The transport section is equipped with the paper separation sensor(PSD) which senses separation of the paper and is utilized to makethe drive timing of the duplex gate solenoid (DGS1) after fusing in theduplex copy mode.

2. Basic composition

(1) Paper feed tray sectionPaper feed belt: Four belts are provided in the air paper feed unit and

rotation drive is obtained from the belt drive clutch(TBC).

Air paperfeed unit:

Composed of the suction duct unit and the blowerduct unit. When the suction valve solenoid (TVVS) is turnedon, the suction duct unit pulls the paper from the topof the stack in the tray to the paper feed belt. When the blower duct valve solenoid (TBVS) isturned on, the blower duct unit blows air to the paperin the tray to feed a paper without double feed.

Switch sensor:(No. 1 tray) Upper limit sensor (TLMD1)

Lift motor rotation sensor (TPTD1)Lower limit sensor (TLD1)Tray switch (TSW1)Tray rising sensor (TUD1)

(No. 2 tray) Upper limit sensor (TLMD2)Lower limit sensor (TLD2)Tray switch (TSW2)Tray rising sensor (TUD2)Paper size sensor (PS21 ~ 26)

(No. 3 tray) Upper limit sensor (TLMD3)Lift motor rotation sensor (TPTD3)Lower limit sensor (TLD3)Tray switch (TSW3)Tray rising sensor (TUD3)Paper size sensor (PS31 ~ 36)

(2) Transport unitClutches: Transport roller clutch (TRC1)

Used for transporting papers from No. 2 and No. 3trays.

Transport roller clutch (TRC2)Provided in front of the resist roller. The paper buck-les in the resist roller section to prevent against skewfeeding (Simulation 51-02). Used for feeding andtransporting papers from No. 1 tray, the duplex copytray, and the manual feed multi tray, and for trans-porting papers which are fed from No. 2 or No. 3tray.

Resist roller clutch (RRC)

This clutch synchronizes the lead edge of the imagedata on the drum surface with the lead edge of thecopy paper.

Transport brake clutch (PSBRK)Paper feed timing is very important to cope with thecopy speed of 60 sheets/min. To prevent againstvariations on rising (ON) of the resist roller, thisbrake clutch is turned off after the resist roller drivepower has been stabilized. In this manner the papertransport timing is stabilized.

Duplex copyblower duct:

Blows air to the paper in the duplex copy tray to feedthe paper without double feed. (DVBS)

Sensor: Paper feed sensor (PFD1 ~ 3, DPFD)Paper transport sensor (PPD1 ~ 3)

(3) Manual multi paper feed sectionPaper feedtakeup roller:

When the manual paper feed solenoid (MPFS) isturned on, the takeup roller simultaneously drops onthe paper and feeds only the top sheet of paper. Inthe paper feed roller section, the reverse roller withthe torque limiter is provided to separate the paperwithout double feed.

Sensor: Paper size sensor (Length: MPSD1, 2)(Width: PS1 ~ 6)

(4) Suction section Transport belt: 2 pcs. of transport belts in the suction section.

Sensor: Paper separation sensor (PSD)

(5) Fusing section Fusing roller: Upper heat roller (The surface is teflon-coated.)

Lower heat roller (Silicone rubber is used.)

Cleaning roller: The upper cleaning roller employs an oil tank sys-tem to remove dirt (toner and paper powder) on theupper heat roller surface for smooth separation ofpaper, increasing the lifetime of the heat roller.

Lower cleaning roller, paper dust removing roller

Separationpawl:

Four separation pawls in the upper side and four inthe lower side.

Fusingtemperaturecontrol:

The thermistor and the thermostat are provided tocontrol fusing temperature.

Switch andsensor:

Fuser interlock switch (HL ILSW)Heater lamp supply AC power "ON/OFF" switch

Fuser unit installation sense switch (FUSUS)To protect the heater lamp power line connector,this switch is turned on to cut AC power supplywhen the fuser unit lock is released.

Paper exit sensor (POD)

Transport belt: In the duplex copy mode, the copy paper is curledforcibly after it is discharged from the fusing sectionto prevent against misfeeding in the duplex copytray.

Solenoid: Duplex copy gate solenoid (DGS1)

6 – 1

(6) Paper exit/reverse section Switch sensor: Duplex copy reversing section door switch (DDSW)

Paper exit sensor 2 (POD2)Copy receive tray full sensor (TFD)

Motor: Reversing motor (The reversing roller speed is var-ied: 400 mm/sec for transport from the fuser unit tothe reversing section, and 1000 mm/sec for trans-port from the reversing section to the duplex copytray. This is in order to prevent against paper over-lap in the reverse section during continuous copy-ing.)

Solenoid: Duplex copy reversing section gate solenoid (DGS2)

(7) Duplex copy tray section Alignment plate: Aligns papers with the alignment plate drive motor

(DWM). The alignment plate operates every time apaper enters according to the duplex copy traypaper entry sensor (DPID) signal. When the duplex copy mode is selected with theoperation key and copying is started, the alignmentplate moves from the home position (DTWHP) ac-cording to the copy paper size (width).

Rear edgeplate:

The paper rear edge position is determined by therear edge plate drive motor (DBM). The duplex copymode is selected with the operation key and copyingis started. At the timing of the initial rising of the paper trans-port clutch (TBC1) signal, the rear edge plate movesfrom its home position according to the copy papersize (length).

Paper feed belt: Three belts are provided in the air paper feed unit toprovide rotation drive power with the belt drive clutch(DBC).

Air paperfeed unit:

Composed of the suction duct unit and the blowerduct unit. Different from other paper feed tray units,in the duplex copy tray, papers are fed from thebottom. Therefore, the paper lead edge stoppermechanism is provided. The suction duct unit pulls the paper from the bot-tom of the stack onto the paper feed belt when thesuction valve solenoid (DVVS) is turned on. Theblower duct unit is incorporated in the transport unit.

3. Basic operations

(1) Air paper feedThe SD-2060 has two fan motors: one for suction and the other forblowing in air paper feed, preventing against paper feed trouble dueto changes in atmospheric pressure. The figure below shows the air paper feed ducts and air flow.

6 – 2

(2) Operations at power "ON"When the power switch of the SD-2060 is turned on, the paper feedtray lift-up motor (TLM) rotates regardless of paper presence in thepaper feed tray, and the tray is lowered until the lower limit sensor(TLD) senses the lower limit. When the lower limit is sensed, the paper feed tray lift-up motor(TLM) lifts up the tray again until the tray is sensed by the tray risingsensor (TUD) or the upper limit sensor (TLMD1). If the tray is sensedby the upper limit sensor, it is judged as paper empty in the tray andthe tray is lowered again.

(3) Paper feed operation from the paper feed tray(No. 1 tray)

When the Start key is pressed, the paper feed (suction, blowing) fanmotors rotate and the valve solenoids are turned on to pull the paperfrom the top of the stack up to the paper feed belt. When the airpressure in the air duct is stabilized, the paper feed belt clutch(TBC1) and the transport clutch (TRC2) are turned on to transport thepaper to the resist roller section.

Power"ON"

TLM rotation(descend)

TLD sense

Second time

No

No

TUD senseNo

TLM rotation(ascend)

TLMD1 senseYes

Yes

TLM stop

Yes

No

Copy start key ON(Fan motor rotates)

TBVS,TVVS,PSBRK"ON"

PFD"ON"

Yes

No

TVVS,TBC.1"OFF"

TBC.1"ON"

TRC.2"ON"

(Optical systeminitial operation)

(Optical systemcopy lamp ON)

(Optical systemfeed start)

PPD.2"ON"

Yes

PPD.3"ON"

Yes

No

No

TRC.2"OFF"

Yes

PFC IN"ON"No

Yes

TRC.2"ON"

RRC"ON"

PSBRK"OFF"

Paper jam

No timing signalinput from theoptical system

The paper iswarped with thetime log set bysimulationNo.51-02(B)

Copy paper transport start

6 – 3

(4) Paper feed operation from the manual multi trayWhen Start key is pressed, the optical system initial operation isperformed. The copy lamp lights up and at the same time the manualpaper feed solenoid (MPFS) turns on. The takeup roller descends tofeed the paper to the paper feed roller. The manual paper feed clutch(MPFC) and the transport clutch (TRC) turn on to transport the paperto the resist roller section.

Copy start key ON

MPFD"ON"

Yes

No

MPFS"OFF",TRC.2"ON"

MPFS"ON"

MPFC"ON"




PPD.2"ON"

Yes

PPD.3"ON"

Yes

No

No

TRC.2"OFF"

Yes

PFC IN"ON"No

Yes

TRC.2"ON"

RRC"ON"

PSBRK"OFF"

Paper jam


The paper iswarped with thetime log set bysimulationNo.51-02(A)


PSBRK"ON"

6 – 4

(5) Paper transport operation to the duplex copytray

After copy image transfer, the paper is separated from the pho-toconductor and fed to the fusing section. After fusing, when the paper exit sensor (POD1) turns on, the duplexcopy transport roller clutch turns on simultaneously to feed the paperfrom the fusing section through the paper entry guide in the duplexcopy tray to the reversing unit.

In this case, the paper exit/reverse switch solenoid (DGS1) is alreadyON. (If the duplex coy mode is specified, DGS1 is turned on simulta-neously with copy start.)When the reversing unit paper entry sensor (DSBD) senses the paperrear edge, the reversing gate solenoid 2 (DGS2) turns on. The duplexcopy switchback motor reverses its rotation and rotates at a highspeed to feed the paper to the duplex copy tray.

POD"ON"

Yes

DTRC"ON"

Fusing

DSBD"ON"

Yes

DSBD"OFF"

PSD"ON"

Yes

Transfer,separation

DGS.2"ON"

DPPD"ON"

Yes

DPID"ON"

Yes

Alignment start

Yes

Copy papertransport start

Paper jam

6 – 5

(6) Paper feed operation from the duplex copy tray When the back of the copy paper is totally copied and it is collected inthe duplex copy tray, the front surface copying is started. Paper feedoperation is, however, started only when the air pressure in the airpaper feed suction duct is stabilized.

Copy startkey ON

DPFD"ON"

Yes

No

DVVS,DBC"OFF"

DVVS"ON"

TRC.2"ON"




PPD.2"ON"

Yes

PPD.3"ON"

Yes

No

No

TRC.2"OFF"

Yes

PFC IN"ON"No

Yes

TRC.2"ON"

RRC"ON"

PSBRK"OFF"

Paper jam


The paper iswarped with thetime log set bysimulationNo.51-02(E)


DBVS,PSBRK"ON"

DBC"ON"

6 – 6

[7] OPTICAL SECTION

1. General

The SD-2060 is composed of a fixed focus lens and six mirrors. Thelens and the mirrors are moved by the stepping motor to positionsaccording to the magnification ratio of reduction, normal, or enlarge-ment copy. magnification ratio is changed from 0.5 to 2.0 in 151 stepsby 1%. The six mirrors realizes a compact design. The slit exposuresystem with the moving light source is employed. Copy image densitycan be controlled by changing light quantity of the copy lamp.

The automatic exposure sensor is provided to sense density of theoriginal and the copy lamp light quantity is controlled by the maincircuit to provide even copy image.


10 3

18 11 2 1 19 121415 16204

6

8 13

5 17

9 7

1 Copy lamp 2 Reflector 3 No. 1 mirror

4 No. 2 mirror 5 No. 3 mirror 6 Lens

7 No. 4 mirror 8 No. 5 mirror 9 No. 6 mirror

F Mirror base B unit G Copy lamp unit H Mirror base C unit

I Lens drive motor J No. 4, No. 5 mirror base drive motor K Mirror motor

L Mirror base home position sensor M Lens home position sensor N Mirror home position sensor

O Automatic exposure sensor P Optical system dirt sensor

(1) Original tableThe original table is fixed, and an original is set to the left center.

(2) Copy lamp100V system 85V 220W200V system 170V 260W

(3) MirrorSix mirrors are used. No. 1 mirror is attached to copy lamp unit, No. 2 and No. 3 mirrors tomirror base B, No. 4 and No. 5 mirrors to mirror base C. Mirror bases A and B are scanned when copying. Mirror base C isused to change the distance between an original and the pho-toconductor in reduction or enlargement copy.

(4) Lens (Fixed focus lens)• Construction: 1 group 4 lenses

• Brightness: F5.6

• Focal distance: 220mm ±1%

(5) Lens home position sensor (LHPS)This sensor is used to sense the lens position. The output signal ofthis sensor serves as the basic signal to control the copy magnifica-tion ratio.

(6) No. 4, No. 5 mirror base home position sensor (MBHPS)

This sensor is used to sense mirror base C (No. 4, No. 5 mirrors).The output of this sensor serves as the basic signal to control thecopy magnification ratio.

(7) Lens baseThe lens are mounted to this base, which is moved in the paper feeddirection for reduction copy and in the paper exit direction for enlarge-ment copy.

(8) Lens slide shaftThis shaft is used to control optical axis of the lens in reduction orenlargement copy. The lenses follow on the slide base shaft.

7 – 1

(9) Lens drive wireThe lens drive wire is used to move the lens base.

(10) Mirror base CNo. 4 and No. 5 mirrors are attached to mirror base C. Mirror base Cis moved by the mirror base drive motor to adjust the distance be-tween an original and the photoconductor in reduction or enlargementcopy.

(11) Mirror base C (No. 4, No. 5 mirrors) drive wireThis wire is used to move mirror base C (No. 4, No. 5 mirrors).

(12) Mirror motorThe mirror motor is a DC servo motor used to move mirror base Aand mirror base B. Its rotation is adjusted according to each magnifi-cation ratio.

(13) Mirror home position sensor (MHPS)This is a transmission type sensor used to sense the home position ofmirror base A.

(14) Mirror base BNo. 2 and No. 3 mirrors ar attached to mirror base B, which isscanned by the mirror motor.

(15) Copy lamp unitThis is composed of No. 1 mirror, the thermostat, the copy lamp, theexposure adjusting plate, the reflector, and the AE sensor, and isscanned by the mirror motor.

(16) ThermostatThe thermal fuse is provided on the reflector to prevent against ab-normal temperature rise in the optical system. In case of an abnormaltemperature rise, it turns off the power source of the copy lamp.100V system 140 ˚C200V system 140 ˚C

(17) ReflectorLight from the copy lamp is reflected by the reflector onto an original.

(18) Exposure adjusting plateThere are three exposure adjusting plates attached to mirror base Ato adjust exposure balance between the front and the rear sides.

(19) Mirror base drive wireThe mirror motor power is transmitted to mirror base A and mirrorbase B to scan the mirror base by means of this wire.

(20) Mirror base (No. 4, No. 5) drive motorThis is a stepping motor used to drive mirror base C.

(21) Lens drive motorThis is a stepping motor used to change lens positions.

(22) AE sensorThe AE sensor senses the original density by the magnitude of lightreflected from the original. The center area of about 100mm wide inthe mirror base scan direction is the light measuring area. The elements are photo diodes.

(23) Blank lamp operation When a reduction image is copied on a large size paper in reductioncopy, the outside area becomes black. In another copy mode, electric charges remain on the outer area ofthe original image and toner is attracted to the area. To dischargethis, light is radiated on the drum by the blank lamps to preventagainst adhesion of toner in the outer area of the image. The lead edge void is also accomplished using the blank lamp. Thevoid width can be adjusted by the diagnostic function.

(24) Optical system dirt sensorThe optical system dirt sensor senses dirt in the light paths of No.1 ~No.3 mirrors, and controls the copy lamp intensity to provide goodcopies.

3. Basic operation

(Relation between an original, the lenses, and images in each magni-fication ratio)Normal copy: The distance between the original surface set on the

table glass and the lens is adjusted to the distancebetween the lens and the exposure surface of thephotoconductor to make a normal copy.

Enlargement: The lens moves closer to the original compared to it’sposition during normal copying, and the distance be-tween the original surface and the lens is shortened. No. 4 and No. 5 mirrors go far from the lens and thedistance between the lens and the exposure surfaceof the photoconductor becomes greater. The distance between the original and the exposuresurface of the photoconductor becomes greater thanin the normal copy.

7 – 2

Reduction: The lens moves closer to the photoconductor com-pared to it’s position during normal copying, and thedistance between the original surface and the lensbecomes greater. The distance between the lens and the exposure sur-face of the photoconductor becomes shorter. No. 4, 5 mirror and the mirror base go far from thelens. The distance between the original and the exposuresurface of the photoconductor becomes greater thanin normal copy.

4. Optical system dirt/copy lampdeterioration correction

[General]In the SD-2060, decrease in light quantity due to the optical systemdirt or the copy lamp deterioration is sensed with the sensor providedin the optical system unit to correct the lamp voltage.

[Details]

1 Light is emitted from the copy lamp at 70V to the reference whiteplate provided in the optical system unit, and the sensor output forthe reflected light is registered.

2 When the power is turned on, the copy lamp voltage is changedfrom 80V, 75V, 70V, ...., and the copy lamp voltage is calculatedwhich is the registered value of 1 .

3 The ratio of the copy lamp voltage calculated in 2 to the copylamp voltage (70V) at registration is calculated to correct the ex-posure copy lamp voltage in each mode.

Mirror base scan speed

Copy paperfeed direction

Lens and mirror positionsare changed to adjust themagnification ratio.

Mirror scan speed is changed to adjust the magnification ratio.

Mirror scan speed Drum rotating speed < Mirror scan speed

Enlargement

Original

Lens and mirrorpositions arechanged to adjustthe magnificationratio.

Reduction

7 – 3

[8] RADF (Reversing Automatic Document Feeder) unit

1. General

The RADF unit automatically transports documents and reverses du-plex documents, allowing for continuous copying. When documents of different sizes are set in the document tray, thedocument size is sensed by the RADF fray sensors and the appropri-ate copy paper size or magnification ratio is selected. If there is no copy poper paper suitable for the sensed document sizeand the magnification ratio, copying is terminated and the requiredpaper size is displayed (blinking) on the display section.

(Features)

1 The employment of the step-passing of A4 (81⁄2" x 11") size paper(first paper passing, and second paper passing simultaneouslywith copying) together with the single-sided docunent handlingand the duplex document handling capability reduces copyingtime.

2 Compact design, due to the folding document tray section.

3 The document width size is sensed using a potentiometer whichchanges its resistance with each position of the width guides. Thedocument length is sensed using two photointerrupters.


The RADF is composed of the following parts.

(1) Document tray section, paper feed section, transport section, reverse section, paper exit section

1 Document exit, reverse sensor (RDD) 2 Turn roller 3 DR gate

4 Paper exit roller 5 Belt drive roller 6 Transport belt

7 Belt follower roller 8 Document timing sensor (DTS) 9 Resist roller A

10 Document resist sensor (DRS) 11 Paper feed roller 12 Takeup roller

13 Document set sensor (DSD) 14 Document length sensor 1 (DLS1) 15 Document length sensor 2 (DSL2)

16 Document width sensor (DWD) 17 Paper feed gate 18 Separation roller

19 Document width sensor (DWLS, DWRS) 20 Resist roller B 21 Belt tension roller A

22 Belt tension roller B 23 Document table 24 Belt tension roller C

25 Document stopper

21 20 19 18 17 1625 24 23 22

7 8 9 10 11 12 13 14 151 2 3 4 5 6

8 – 1

(2) PWB sensor/Switch/Solenoid/Motorarrangement view

No. Code/Signal Name

1 RADF PWB RADF control PWB

2 LED PWB Display PWB

3 DFMRS Paper feed motor rotation sensor

4 DTMRS Transport motor rotation sensor

5 DEMRS Paper exit/reverse motor rotation sensor

6 DLS1 Document length sensor 1

7 DLS2 Document length sensor 2

8 DWD Document width sensor

9 DSD Document set detector

10 DRS Document resist sensor (PBA-sensor 1)

11 DTS Document timing sensor (PBA-sensor 1)

12 DWLSDocument width light emitting sensor (LED PWB)

13 DWRSDocument width light receiving sensor (PT PWB)

14 RDD Paper exit/reverse sensor (PBA-sensor)

15 SSW Stream mode switch

16 TPSW Thin paper mode switch

17 AUOD RADF open/close switch

18 TGOD Turn guide open/close detector

19 DFM Document feed motor

20 DTM Transport motor

21 DEM Document exit/reverse motor

22 DTB Transport brake

23 DRSOL Reverse solenoid

3. Basic operations

(1) Motor and rollers operations1 Paper feed motor (DFM) and rollers

The paper feed motor (DFM) drives the takeup roller, the paper feedroller, the separation roller, and the resist roller. During documentfeeding, the paper feed roller, takeup roller, and separation roller allrotate, while the resist roller remains stationary. If the resist roller isrotating, the paper feed roller, takeup roller, and separation rollerremain stationary. The paper feed roller, takeup roller, separation roller, and resist rollerare each rotated individually within the same drive system. A one-way clutch is used to switch the rotating direction of the paper feedmotor (DFM).

a Operations in document feeding

* One way clutch

b Operations in document transport

* One way clutch

Paper feed motor (DFM) normal rotation (direction A)

G2 G3 G6 Paper feed roller Takeup roller

G4

G7G8 G9 Separation roller

G5 Resist roller

Paper feed motor (DFM) reverse rotation (direction A)

G2 G3 G4 Resist rollerG5G6 (Since G7 is a one-way

clutch, drive power is not transmitted to the paper feed roller and the takeup roller.)

G4G3

G5

G2

G8G6

G9

A

Paper feed roller

Resist roller

Paper feed motor(DFM)

Take up roller

Paper feedingdirection

Separationroller

B

G4G3

G5

G2

G8G6

G9

Paper feed roller

Resist rollerPaper feed motor(DFM)

Take up roller

8 – 2

2 Transport motor (DTM), paper exit motor (DEM), and rollers

The transport motor (DTM) drives the transport belt (transport beltdrive roller). It rotates in the normal direction when transporting adocument, and rotates in the reverse direction when reversing thedocument. To switch its rotating direction, the rotating direction of thetransport motor (DTM) is switched. The exit motor (DEM) drives the turn roller and the paper exit roller.Its rotating direction is not changed even when the rotating directionof transport motor (DTM) is changed.

a Operations in document transport

b Operations in document reversingWhen the transport motor (DTM) rotates in the arrow direction (thereverse direction), the drive power of gear G1 is transmitted togear G2, rotating shaft X in the direction of arrow A. When shaft X rotates in the direction of arrow A, gear G3 on shaftX also rotates in the direction of arrow A. The drive power of gear G3 is transmitted to gear G4, rotating thetransport belt drive roller shaft and the transport belt in the direc-tion of arrow A. Since the paper exit motor (DTM) rotates in the direction of arrowB when a document is transported, the paper exit roller and theturn roller also rotates in the direction of arrow B. • Transport motor (DTM)

normal rotation (direction A)G2 G3 G4 Transport belt

• Paper exit motor (DEM) normal rotation (direction A)

G6 Paper exit roller

G7 Turn roller

• Transport motor (DTM) reverse rotation (direction B)

G2 G3 G4 Transport belt

• Paper exit motor (DEM) normal rotation (direction A)

G6 Paper exit roller

G7 Turn roller

G6G7

G2G3G4

A

A

Turn roller

Paper exit motor(DEM)

Paper exit roller

Transport belt

Transport motor (DTM)

G6G7 A

G5

G2

G3G4

B

Turn roller

Paper exit motor(DEM)

Paper exit roller

Transport belt

Transport motor (DTM)

8 – 3

2. Basic composition A Original path

(1) ADF mode (single copy mode) operation in the RADF (C-16) (2) RADF mode (duplex mode) operation in the RADF (C-16)

1) Original setting

2) Paper feed

3) Transport

4) Stop (Copy)

5) Paper exit

6) Paper exit completion

1) Original setting

2) Paper feed

3) Transport

4) Reverse

5) Reverse transport

6) Transport

7) Stop (Back surface copy)

8) Reverse

9) Reverse transport

10) Transport

11) Stop (Front surface copy)

12) Paper exit

13) Paper exit completion

8 – 4

(3) ADF step feed mode operation in the RADF (C-16)

1) Original setting

2) Paper feed (The first original)

3) Transport (The first original)

4) Stop (The first original), paper feed (The second original)

5) Transport (The first original, the second original)

6) Stop (The first original copy), stop (The second original), paper feed (The third original)

7) Paper exit (The first original), transport (The second original, the third original)

8) Paper exit (the first original), stop (the second original), stop (the third original)

9) Paper exit (the second original), transport (the third original)

10) Paper exit completion (the second original), stop (the third original copy)

11) Paper exit (the third original)

12) Paper exit completion (the third original)

8 – 5

[9] ELECTRICAL SECTION

9 – 1

SD

2060

B.D

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R(Q

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R(I

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M

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R(I

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R(I

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R(I

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R(I

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R(I

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R(I

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R(I

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R(I

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R(I

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38v

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MD

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SS

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R(Q

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IC19

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R(Q

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IC7

IC11

IC5

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R(Q

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IC6

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R(Q

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IC6

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R(Q

7)

IC28

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IC6

IC2

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R(Q

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LED

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R(Q

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24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

24v

AC

AC

AC

AC

AC

10v

10v

10v

38v

38v

38v

38v

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10v

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1. System block diagram

2. Operations at power ON

3. Main circuit

The SD-2060 main circuit is composed of the following control cir-cuits:

• Paper feed/transport control circuit

• Process control circuit

• Fusing control circuit

• Toner supply control circuit

• Duplex copy control circuit

• RADF control circuit

• Sorter control circuit

• Paper feed tray control circuit

• CL light quantity control circuit

• PPC communication control (RIC) circuit

• Auditor control circuit

• Commander control circuit

Power ON

Main CPU initial settingI/O initial setting

Memory initial setting

Operation control CPU resetMirror CPU resetRADF CPU reset

(Sorter control CPU reset)

Backup memory check

Interlock door check

Pass sensor check (Misfeed check)

Paper feed tray unitDescending Rising

Heater lamp ON(The fusing heat increases.)

Mirror base initial setting Duplex copy tray initial setting

Lens initial setting

Main motor rotationLongest: 3 min 30 sec

Shortest: 40 sec

(Note 2)

Drum motor rotationLongest: 2 min

Shortest: 25 sec

(Note 1)

Ready lamp ON

(Note 1) When toner density level is sbove the specified level after 0.5 sec rotation of the drum motor (DM), the drum motor will stop in about 25 sec.

(Note 2) When the fusing roller temperature isabove 100˚C at power ON, the main motor (MM) will rotate for about 40 sec after the temperature control level is reached. When the fusing roller temperature is below 100˚C at power ON, the main motor will rotate for about 3 min 30 sec (Japan) or about 40 sec (Overseas) after the temperature control level is reached.

9 – 2

(1) CPU (IC113) Signal list

Pin No. Signal name Port In/Out H/L Description

1 TC P90/PW3/IOF10 OUT "H" PWM Transfer charger PWM output

2 SHV P91/PW4/IOF11 OUT "H" PWM Separation charger PWM output

3 BIAS P92/PW5/IOF12 OUT "H" PWM Developer bias PWM output

4 MC P93/IOF13 OUT H Main charger control

5 DWMA P94/IOF14 OUT H Duplex alignment plate stepping motor phase A

6 DWMB P95/IOF15 OUT H Duplex alignment plate stepping motor phase B

7 DWMA P96/IOF16 OUT H Duplex alignment plate stepping motor phase A

8 DWMB P97/IOF17 OUT H Duplex alignment plate stepping motor phase B

9 +5V (C) Vcc IN — CPU power (+5V)

10 FWS P100/IOF20 IN "H" ↑ FW zero-cross signal input

11 DGD1 P101/IOF21 IN "H" ON Duplex gate detector (for switchback)

12 BLTin P102/IOF22 IN "L" ↓ BL timing trigger

13 PPD/PFCin P103/IOF23 IN "L"/"H" PPD3/PFCin signal monitor

14 DBMA P104/IOF24 OUT — Duplex rear plate/switchback stepping motor phase A

15 DBMB P105/IOF25 OUT — Duplex rear plate/switchback stepping motor phase B

16 DBMA P106/IOF26 OUT — Duplex rear plate/switchback stepping motor phase A

17 DBMB P107/IOF27 OUT — Duplex rear plate/switchback stepping motor phase B

18 TxD OP P80/IOF00 OUT "L" START Serial out (for operation panel)

19 RxD OP P81/IOF01 IN "L" START Serial in (for operation panel)

20 TxD MIR P82/IOF02 OUT "L" START Serial out (for mirror control)

21 RxD MIR P83/IOF03 IN "L" START Serial in (for mirror control)

22 TxD MIR P84/IOF04 OUT "L" START Serial out (for finisher/sorter)

23 RxD FNS P85/IOF05 IN "L" START Serial in (for finisher/sorter)

24 TxD EX P86/IOF06 OUT "L" START Serial out (for RIC/commander)

25 RxD EX P87/IOF07 IN "L" START Serial in (for RIC/commander)

26 GND2 Vss IN — CPU power (0V), signal GND

27 SA P120/D8 OUT H/L Strobe output A

28 SB P121/D9 OUT H/L Strobe output B

29 SC P122/D10 OUT H/L Strobe output C

30 CLinh P123/D11 OUT "H" Copy lamp ON inhibit

31 BLCLOCK P124/D12 OUT H/L BL clock output

32 BLDATA P125/D13 OUT H/L BL data output

33 BLLATCH P126/D14 OUT H/L BL latch output

34 BLBEO P127/D15 OUT "H" BL enable (ON/OFF) control


36 D0 D0 IN/OUT H/L Data bus 0

37 D1 D1 IN/OUT H/L Date bus 1



40 D4 D4 IN/OUT H/L Date bus 4





45 A0 A0 OUT H/L Address bus A0












9 – 3







62 A16 P50/A16 OUT H/L Address bus A16




66 ANSEL1 P13/WAIT OUT H/L Analog input selector 1

67 ANSEL0 P12/BREQ OUT H/L Analog input selector 0

68 WDTout P11/BACK OUT "H" ↑ Watch dog timer out

69 WDTin P10 IN "H" Trouble Watch dog timer monitor

70 RESET RES IN L Reset input

71 POFA NMI IN L Power OFF sequence trigger interruption


73 X101 EXTAL IN — CPU basic clock, crystal oscillator

74 (9.83MHz) XTAL IN


76 AS AS OUT L Address strobe

77 RD RD OUT L Read

78 WR WR/HWR OUT L Write

79 BCKout P17/LWR OUT H Battery check out

80 GND2 MD0 IN L Operation mode control

81 +5V (Pull up) MD1 IN H Mode 6: 8-bit expansion maximum mode

82 +5V (Pull up) MD2 IN H

83 +5V (Pull up) STBY IN L Hardware standby input (+5V pulled up)

84 Vref AVcc IN — Analog power (+4.75V)

85 THS P70/AN0 IN — Thermistor input (Fusing)

86 PWS/BCK2in P71/AN1 IN — Manual feed width detection input/battery check voltage input 2

87 TNCS/BCK1in P72/AN2 IN — Toner concentration input/battery check voltage input 1

88 TNF P73/AN3 IN — Waste toner full detection (SD-2060 NOT USED)

89 PCS P74/AN4 IN — Process control sensor input

90 DMS P75/AN5 IN — Drum marking sensor input

91 AEDS P76/AN6 IN — Optical system dirt detection

92 AES P77/AN7 IN — AE sensor input

93 GND2 AVss IN — Analog power (0V), signal GND

94 GND2 AVss IN — Analog power (0V), signal GND

95 DCH P57/ADTRG OUT H Power OFF sequence trigger (RESET trigger)

96 E P56/E OUT Pulse Enable clock output (for switchback motor)

97 RES FES P54/IRQ0 OUT L Sorter reset out

98 CLCLOCK P60/PW0 OUT "L" PWM Copy lamp clock

99 GRID P61/PW1 OUT "H" PWM Grid out

100 RIC/C P62/PW2 OUT H/L RIC/commander selection

101 TxD UDH P63/TXD OUT "L" START Serial out (for UDH/RADF)

102 RxD UDH P64/RXD IN "L" START Serial in (for UDH/RADF)

103 I8 P65/SCK IN H/L Matrix input I8


105 I0 P110 IN H/L Matrix input I0








9 – 4

(2) CPU input signal matrix

S7 S6 S5 S4 S3 S2 S1 S0

10DDSW in

"L"DTBHPS

"H"DTWHPS

"H"MPFD

"L"DPFD

"L"PFD3

"L"PFD2

"L"PFD1

"L"

11MPSD2

"L"MPSD1

"L"MPED

"L"POD"L"

PSD"H"

PPD3"L"

PPD2"L"

PPD1"L"

12TSW2

"L"TCD2

"L"TUD2

"L"TLMD2

"H"TSW1

"L"TCD3

"L"TUD1

"H"

TLMD1TLMD3

"H"

13SHVGT

"L"DTPD

"H"DPID

"L"DPPD

"L"TSW3

"L"TCD3

"L"TCD2

"L"TCD1

"H"

14DSW"L"

DVCH in"L"

FUSUS in"L"

DSR_RIC DSR_FNS"L"

CTS_RIC CTS_COM DSR_OP"L"

15S80"L"

U2"L"

PS26"H"

PS25"H"

PS24"H"

PS23"H"

PS22"H"

PS21"H"

16TBBOX

"L"TNCTR in

"L"PS36"H"

PS35"H"

PS34"H"

PS33"H"

PS32"H"

PS31"H"

17EXIN1

"–"RRC in

"H"TPTD3Pulse

TPTD2Pulse

TPTD3Pulse

TLD3"H"

TLD2"H"

TLD1"H"

18PFC in

"H"TFD"H"

POD2"L"

PNC_a"L"

MMT"H"

DMT"H"

RAMSET"L"

MDOP"L"

@ 1: "H"/"L" are at the port level.

(3) CPU analog input signal

1 The AE sensor input/optical system dirt detection is independent as an analog input port. Since, however, the port for determining the input gainis common, it is impossible to read two ports at the same time. Therefore, the gain of the above two sensor inputs is first outputted, then thecorresponding analog input is read.

2 ANSEL0/ANSEL1 (select port) is assigned to an independent port, allowing selection of input ports as required.

3 After a certain period (about 500 usec - 1.0 msec) from selection of the input port, the analog input is disabled. The analog data immediatelyafter selection are disabled.

Port No. Name

P77 AES AE sensor input

P76 AEDS Optical system dirt detection

P75 DMS in Drum marking sensor input

P74 PCS in Process control sensor input

P73 TNF Not used in the SD-2060.

P72 TNCS BCK1 inANSEL0

P70 - P72 are selected by ANSEL0/ANSEL1. (See the tablebelow.)

P71 PWS BCK2 in

P70 THS ANSEL1

ANSEL0 ANSEL1

P72 "L" – TNCS Toner (density) control sensor input

P71 "L" – PWS manual width size sensor input

P70 – "L" THS Fusing temperature (thermistor) input

P72 "H" – BCK1 in Battery check voltage input 1 (Main)

P71 "H" – BCK2 in Battery check voltage input 2 (Option)

P70 – "H" Not used.

9 – 5

(4) I/O.1 (IC107) signal list


1 RTS COM PF6 OUT Request to send (for commander)

2 RRCinh PF7 OUT "L" Resist roller clutch ON inhibit

3 +5V (C) Vcc IN — Power (+5V)

4 RES OP PE0 OUT "H" Slave reset (for operation panel)

5 RES MIR PE1 OUT "H" Slave reset (for mirror control)

6 RES UDH PE2 OUT "H" Slave reset (for UDH/RADF)

7 FFMb PE3 OUT "L" Fuser ventilation fan motor (for +10V drive)

8 FFMa PE4 OUT "L" Fuser ventilation fan motor (for +24V drive)

9 TLMP1 PE5 OUT "L" Tray pilot lamp 1



12 GND2 Vss IN — Power (0V), signal GND

13 PSPS PB0 OUT "H" Separation solenoid

14 DHR PB1 OUT "H" Drum heater relay

15 DL PB2 OUT "H" Discharge lamp

16 PTC PB3 OUT "H" Pre-transfer charger

17 SFM PB4 OUT "H" Suction fan motor

18 HRS PB5 OUT "H" Heat roller solenoid

19 PR PB6 OUT "H" Power relay

20 PCN PB7 OUT "H" Personal counter count up

21 HL2 PA7 OUT "H" Heater lamp 2 (sub-heater)

22 HL1 PA6 OUT "H" Heater lamp 1 (main heater)

23 EX2 PA5 OUT "H" (Reserved) Fixed to L.

24 EX1 PA4 OUT "H" (Reserved) Fixed to L.

25 TM3 PA3 OUT Pulse Toner motor 2 phase B

26 TM2 PA2 OUT Pulse Toner motor 2 phase A

27 TM1 PA1 OUT Pulse Toner motor 1 phase B

28 TM0 PA0 OUT Pulse Toner motor 1 phase A


30 RD RD IN "L" Read input

31 WR WR IN "L" Write input

32 I/O1CS CS IN "L" I/O chip select input

33 RESET RESET IN "H" Reset input


35 A2 A2 IN H/L Address bus A2



38 D0 D0 IN/OUT H/L Data bus D0





43 D5 D5 IN/OUT H/L DAta bus D5



46 AEGAIN2 PC7 OUT H/L AE sensor gain 2



49 SS/FNS PC4 OUT H/L Sorter/finisher selection

50 MPFS PC0 OUT "H" Manual paper feed solenoid

51 MPFC PC1 OUT "H" Manual paper feed clutch

52 RRCout PC2 OUT "H" Resist roller clutch control

53 OPRAMRE PC3 OUT "H" Option RAM access enable

54 DSR UDH PG0 IN "H" Slave communication request (for UDH/RADF)

55 DSR MIR PG1 IN "H" Slave communication request (for mirror control)

9 – 6


56 TVMT PG2 IN "H" Tray vacuum fan motor trouble detection

57 TBMT PG3 IN "H" Tray blower fan motor trouble detection


59 DTR OP PF0 OUT "L" Slave communication enable (for operation panel)

60 DTR MIR PF1 OUT "L" Slave communication enable (for mirror control)

61 DTR UDH PF2 OUT "L" Slave communication enable (for UDH/RADF)

62 DTR FNS PF3 OUT "L" Slave communication enable (for sorter/finisher)

63 DTR RIC PF4 OUT Data terminal ready (for RIC)

64 RTS RIC PF5 OUT Request to send (for RIC)

(5) I/O.1 input/output signal matrix

Port 7 6 5 4 3 2 1 0

PAOutHL2"H"

OutHL1"H"

OutVFM"H"

OutPSFM"H"

OutTM3Pulse

OutTM2Pulse

OutTM1Pulse

OutTM0Pulse

PBOutPNC"H"

OutPR"H"

OutHRS"H"

OutSFM"H"

OutPTC"H"

OutDL"H"

OutDHR"H"

OutPSPS"H"

PCOutAEGAIN2H/L

OutAEGAIN1H/L

OutAEGAIN0H/L

OutSS/FNS_H/L

OutOPRAME_"L"

OutRRCout"H"

OutMPFC"H"

OutMPFS"H"

PEOutTLMP3_"L"

OutTLMP2_"L"

OutTLMP1_"L"

OutFFMa_"L"

OutFFMb_"L"

OutRES_UDH"H"

OutRES_MIR"H"

OutRES_OP"H"

PFOutRRCinh_"L"

OutRTS_COM

OutRTS_RIC

OutDTS_RIC

OutDTS_FNS_"L"

OutDTS_UDH_"L"

OutDTS_MIR_"L"

OutDTS_OP_"L"

PG (NO USE) (NO USE) (NO USE) (NO USE)InTBMT"H"

InTVMT"H"

InDSR_MIR"H"

InDSR_UDH"H"

@ 1: "H’/"L" are at port level.

9 – 7

(6) I/O.2 (IC108) signal list


1 TVM PF6 OUT "L" Tray vacuum fan motor

2 TBM PF7 OUT "L" Tray blower fan motor


4 DMGAIN0 PE0 OUT H/L Drum marking sensor gain 0



7 DM PE3 OUT "L" Drum motor

8 PSGAIN0 PE4 OUT H/L Process sensor gain 0



11 MM PE7 "L" Main motor


13 TVVS3 PB0 OUT "H" Tray3-vacuum valve solenoid

14 TBVS3 PB1 OUT "H" Tray3-blower valve solenoid

15 TBC3 PB2 OUT "H" Tray3-belt clutch

16 DVVS PB3 OUT "H" Duplex vacuum valve solenoid

17 DBVS PB4 OUT "H" Duplex blower valve solenoid

18 DBC PB5 OUT "H" Duplex belt clutch

19 DTRC PB6 OUT "H" Duplex transport (paper correction) clutch

20 DGS1 PB7 OUT "H" Duplex gate solenoid (after fusing)

21 TRC2a PA7 OUT "H" Transport clutch 2

22 TRC1 PA6 OUT "H" Tray transport clutch 1

23 TBC2 PA5 OUT "H" Tray 2 belt clutch

24 TBVS2 PA4 OUT "H" Tray 2 blower valve solenoid

25 TVVS2 PA3 OUT "H" Tray 2 vacuum valve solenoid

26 TBC1 PA2 OUT "H" Tray 2 belt clutch

27 TBVS1 PA1 OUT "H" Tray 2 blower valve solenoid

28 TVVS1 PA0 OUT "H" Tray 2 vacuum valve solenoid


30 RD RD IN "L" Read input

31 WR WR IN "L" Write input

32 I/O2CS CS IN "L" I/O chip select input

33 RESET RESET IN "H" Reset input













46 PFM PC7 OUT "H" Process cooling fan motor (+10V drive)

47 BRK PC6 OUT "H" Brake clutch

48 CFM2 PC5 OUT "H" Optical system cooling fan motor 2

49 CFM1 PC4 OUT "H" Optical system cooling fan motor 1

50 DTRC2 PC0 OUT "H" Duplex transport clutch 2

51 SGS PC1 OUT "H" Duplex lead edge stopper solenoid

52 DSSEL PC2 OUT H/L Duplex stepping motor selection

53 DGS2 PC3 OUT "H" Duplex gate solenoid F2 (for switchback)

54 MCT PG0 IN "L" Main charger trouble detection

55 TCT PG1 IN "L" Transfer charger trouble detection

9 – 8


56 TES PG2 IN "L" Toner empty detection

57 TNF PG3 IN Waster toner bottle full detection


59 TLM1U PF0 OUT "L" Tray lift motor 1 rise



62 TLM1D PF3 OUT "L" Tray lift motor 1 fall



(7) I/O.2 input/output signal matrix

Port 7 6 5 4 3 2 1 0

PAOutTRC2a"H"

OutTRC1"H"

OutTBC2"H"

OutTBVS2"H"

OutTVVS2"H"

OutTBC1"H"

OutTBVS1"H"

OutTVVS1"H"

PBOutDGS1"H"

OutDTRC"H"

OutDBC"H"

OutDBVS"H"

OutDVVS"H"

OutTBC3"H"

OutTBVS3"H"

OutTVVS3"H"

PCOutPFM"H"

OutPSBRK"H"

OutCFM2"H"

OutCFM1"H"

OutDGS2"H"

OutDSSELH/L

OutDFSS"H"

OutCRS"H"

PEOutMM_"L"

OutPSGAIN2H/L

OutPSGAIN1H/L

OutPSGAIN0H/L

OutDM_"L"

OutDMGAIN2H/L

OutDMGAIN1H/L

OutDMGAIN0H/L

PFOutTBM_"L"

OutTVM_"L"

OutTLM3D_"L"

OutTLM2D_"L"

OutTLM1D_"L"

OutTLM3U_"L"

OutTLM2U_"L"

OutTLM1U_"L"

PG(NO USE) (NO USE) (NO USE) (NO USE) In

TNF"H"

InTES"L"

InTHVGT"L"

InMHVGT"L"

@ 1: "H"/"L" are at port level.

(8) Memory (IC116, IC207)The SD-2060 employs the EEPROM and battery-backed-up SRAMas its memory. In addition to the conventional SRAM, the EEPROM isused to provide a double backup system, preventing against memorydata error caused by external noises. That is, the SD-2060 has backup memory of:

1 IC207 TC5564AFL (SRAM),

2 IC116 X28C64 (EEPROM).The SRAM 1 is backed up with a battery, and the EEPROM 2 is amemory which keeps the data even when the power is turned off. TheEEPROM has the following two features:

1 The number of writing is limited (about 100K). (For the SRAM,there is no limitation.)

2 It takes some time to write. (About 10 msec for 64 Kbyte write.The SRAM takes only 1 usec.)

In the SD-2060, therefore, data to be stored are classified and someare written into the EEPROM.

(1) Writing every time when turning off the power:The most important data in the total counter and the maintenancecounter are written into the SRAM, and transferred from theSRAM to the EEPROM every time when the power is turned off.

(2) Direct writing to the EEPROM:Less frequently written data such as simulation data are writtendirectly into the EEPROM.

(3) Writing as required:Auditor related data such as 1 account No. memory, 2 limitcounter memory, and 3 department counter body are very largein volume, and stored in the SRAM normally. Some of them aretransferred to the EEPROM as required.

(SRAM) (EEPROM)

Counter area (1) Counter area

(2) Simulation data area

Auditor related data (3) Auditor related data

9 – 9

(9) Power circuit in the main circuit In the SD-2060 main PWB, the 24V power voltage is supplied fromthe DC power circuit, and IC117 (78M10H) and IC118 (78M05H)generate the power used in the main circuit. This prevents againstabnormal operations of the main circuit due to the power line noises.

(10) Auto exposure sensor (AES) and optical system dirt sensor (AEDS) circuit

The auto exposure sensor (AE) and the optical system dirt sensor(AEDS) circuit are composed of the sensor input circuit and the sen-sor gain level select circuit. When simulation No./ 47 is performed, the auto exposure sensor (AE)reads the white paper level to determine the gain level. When simula-tion no. 46 is performed, the optical system dirt sensor (AEDS) radi-ates the reference plate on the back surface of the glass holder with aconstant light intensity (CL voltage: 70V) to determine the gain level.

(11) Process control sensor (PCS, DNS) circuitThe process control sensor circuit is composed of the sensor inputcircuit and the sensor gain level select circuit.The process control sensor (PCS) and the drum mark sensor (DMS)are divided into the light emitting section and the light receiving sec-tion. The gain level in the light emitting section is controlled to obtaina constant input voltage in the light receiving section. The input circuitis provided with a variable resistor to adjust variations in the sensorsensitivity with simulation No. 44-2, 3.

(12) Battery voltage check circuitWhen the SD-2060 main body power is turned on, the circuit is oper-ated with the memory backup battery voltage check (BCKOUT) signalwhich is sent from the CPU and the battery voltage is fed-back to theanalog port of the CPU.

(13) Reversing section drive motor control circuitIn the duplex copy mode, paper transported from the fuser unit isreversed and transported to the duplex copy paper. In this case, thetransport speed is switched and paper overlapping in the reversingsection is prevented in continuous paper feed by this circuit.

(Transport speed) Fuser unit → Reversing section: 400 mm/secReversing section → Duplex copy tray: 1000 mm/sec

IC118

IC117 +10V(B)

+5V(C)

+5V(B)

+24V

FW

CPUROMI/OEE-PROM

RAM

+- IC113

Analog inputAES(AEDS)

AES(AEDS)

IC107AEGIN2

AEGIN1

AEGIN0

I/O

+-PCS

(DMS)

+10V

IC108

I/O

IC113AnaloginputPCS(DMS)

+-

IC232Analogsignalselector

IC113CPUBCKout

AN

IC113CPU

DSM

DBM

DSSEL/DBMA,B,A,B

C/CW,M1

CK1IC234TimmerPulsegenerator

IC133Motordriver

IC221Motorselector

9 – 10

(14) Fan motor control circuitThe fan motor control is classified into two as follows:

1 ON during copying onlya. Optical system fan motor (CFM1, CFM2, VFM)b. Power PWB cooling fan motor (PSFM)

2 ON regardless of copying or standbya. Fuser blower fan motor (FFM)b. Process blower fan motor (PFM)

To suppress noises in the standby state, selection of +24V/+10V isperformed.

FFMa_ FFMb_ PFM FFM PFM

1 1 0 OFF OFFPower OFF,door open,trouble, JAM

1 1 1 OFF +10V ON NC

1 0 0 +10V ON OFF NC

1 0 1 +10V ON +10V ON Ready standby

0 1 0 +24V ON +24V ON Copying

0 1 1 +24V ON +24V ON NC

0 0 0 +24V ON +24V ON NC

0 0 1 +24V ON +24V ON NC

("1": "H", "0": "L")

1 Delay from POWER ON (about 100 msec)

2 Driven with +24V (for about 1.0 sec) → 3 Warmup, ready wait

4 During copying

5 Door open, JAM → 6 Door close (Same process of 1 → 2 →3 .)

(15) Blank lamp control circuitThe blank lamp radiates light to the non-image area on the pho-toconductor to discharge the void area in the copy lead edge and thenon-image area in reduction copy.

To control BL (blank lamp), the following control lines are provided.

1 BLCLOCK: Serial transfer clock output

2 BLDATA: Serial transfer data Data is changed at clock rising. Data is saved at clock falling.

3 BLLATCH: Data latch output Data is changed at latch output rising. Data is saved at latch output falling.

4 BLBEO: Data output enable Driver (data) is ON at "H." Driver (data) is OFF at "L."

(Note) The output level definitions are at the CPU port.

(Relationship between reduction copy and the blank lamp)

Reduction ratio BL state (F : ON, :OFF)

×100% ~ ×96% F ← 50 → F

× 95% ~ ×92% F F ← 48 →F F

× 91% ~ ×88% F F F ← 46 → F F F

× 87% ~ ×84% F ← 4 →F ← 44 → F ← 4 → F

× 83% ~ ×80% F ← 5 →F ← 42 → F ← 5 → F

× 79% ~ ×76% F ← 6 →F F ← 40 → F ← 6 → F

× 75% ~ ×72% F ← 7 →F ← 38 → F ← 7 → F

× 71% ~ ×68% F ← 8 →F ← 36 → F ← 8 → F

× 67% ~ ×64% F ← 9 →F ← 34 → F ← 9 → F

× 63% ~ ×59% F ← 10 →F ← 32 →F ← 10 → F

× 58% ~ ×56% F ← 11 →F ← 30 →F ← 11 → F

× 55% ~ ×52% F ← 12 →F ← 28 →F ← 12 → F

× 51% ~ ×50% F ← 13 →F ← 26 →F ← 13 → F

BL CLK

BL DATA

BL LATCH

BL BEO

IC 113CPU

IC 214IC 2Controller

BL PWB

BL

POWER

FFM

PFM

+24V

+10V

OFF

+24V

+10V

OFF

ON

ON

ON

ON

ON

OFF

OFF

1 2 3 4 5 6

BLCLOCK

BLDATA

BLLATCH

BLBEO

ON

OFF

ON

LATCH

9 – 11

4. POWER SOURCE

(1) Block diagramThe DC power circuit directly rectifies the AC source voltage, switch-ing-transforms it with the convertor circuit, rectifies it again andsmoothes it to provide a DC voltage. The block diagram is shownbelow.

Over voltageprotectioncircuit

AC IN Noise filtercircuit

Rush currentIimiting circuit

Rectifyingsmoothingcircuit

Driver transformer(T3)

Driver transformer(T5)

Full-waverectifyingcircuit

PC1

Inverter circuit(RCC system)

ConverterTransformer(T1)

Inverter (24V)circuit(Forward system)

Convertertransformer(T2)

Convertertransformer(T2)

Inverter (38V)circuit(Forward system)


24V controlcircuit

Thermalprotection


38V controlcircuit

Rectifying (-24V out)smoothing circuit

Regulator circuit

Rectifying (10V out)smoothing circuit

Regulator circuit

Rectifying (12V out)smoothing circuit

Regulator circuit

-24V ON/OFFcontrol

24V ON/OFFcontrol

5V ON/OFFcontrol

Choppercircuit

FW circuit

10V ON/OFFcontrol

-24V

10V

24V

38V

5V

FW

9 – 12

(2) Operation

1 Noise filter circuitThe input noise filter circuit is composed of L and C as shown below,reducing normal mode noises and common mode noises flowing intoand out from the AC line.

2 Rush current limiting circuitTo protect the switch contacts from being deteriorated by an ex-tremely large rush current, the rush current limiting circuit is provided.When the power is supplied, a charging current flows through R4 andR111 to the smoothing capacitor, limiting the rush current. When the

RCC invertor starts its operation later, the voltage generated in T1turns on TRC1, biasing R4 and R111. (R111 is equipped with abuilt-in fuse.)

3 Rectifying/smoothing circuitThe AC input voltage is rectified with diode D1 and smoothed withelectrolytic capacitors C9 and C10. This circuit employs the doublevoltage rectifying method, providing a DC voltage after rectificationtwice as great as the input voltage.

4 Invertor circuit (RCC system, 10V, –24V and thecontrol circuit power system)This circuit is a one-stone self-excited invertor, and the system iscalled as the ringing choke convertor (RCC) system.The circuit operation is as follows: When a drive current is appliedthrough starting resistors R7 and R8 to the base of switching transis-tor Q1, switching transistor Q1 conducts. Then a voltage is applied tothe primary winding of transformer T1, generating a voltage in thedrive winding simultaneously. The bias is further kept in the positive

direction. Therefore the collector current increases as time passes.As a result, after some time, Q1 becomes insufficient in hFE, shiftingto OFF state rapidly. At this moment, secondary rectifying diodes (D6,D7, D8) conduct to supply power to the load. The control circuit is simple in construction. When Q1 is turned off,C15 is negatively charged through D2.As the voltage across C15increases, ZD1 conducts to turn on Q2, cancelling the base current ofQ2 and turning off Q2. In this way is the ON/OFF timing of Q2 iscontrolled so that the voltage across C15 is kept at a constant level.

The three output circuits in the secondary side are stabilized by thethree-terminal regulator IC’s (IC1, IC2, IC3). For –24V and 10V out-puts, the ON/OFF control circuit for sequence control is provided. The–24V output is controlled by ZD20, Q8 and Q12 so that the output isturned on when the 24V output is 18V or higher. The 10V output iscontrolled by the three-terminal IC with the output ON/OFF controland Q9 so that it is outputted when the 5V output supplies 1V ormore. The +12V output serves as the power source for controlling the24V/38V output invertor circuit as described later. When this outputfalls below 8V, all outputs are stopped.

L1F701

(15A 125V)C1 C2

C4

C5

L2

R111R4

TRC1

R2

R3 R9 D3

C13

T1

To smoothing capacitor

F1

0.4A250V

R7180K1/2W

R8180K1/2W

Q22SB698

R14470 R13

1K

ZD1RD6.2EB1

ZD2RD7.5EB1

Q12SC4231

R111001W

C65680P

C14

0.1

R124701KV +

C230.011KV

R1082K2W

D4

ERB44-0B

+C13100010V

R9

331/2W

D3

AL01Z

T1ST-X09

(7)

(6)

(2)

(11)

D6

AL01Z+C16

22025V

(10)

R241.8K1/2W

IN OG

1 3

IC1AN78N12

+C1810016V

2

IN OG

1 3

2

1 5

IC3L780S10

3 4

(13)

(12)

D7

AL01Z+C17

10050V

R252.7K1/2W

R255.6K

R28

2.2K

IC2AN78L24

Q122SA953

D321SS53

C190.1

Q82SC945

R2910K

(15) D8

AL01Z

(14)

+C2058025V

R301.8K1/2W

R315.8K

R324.7K

IN OG R +

C2110016V

Q92SC945

R19 47K

(3)

D5AL01Z

(4)

(5)

C15

100 50V

+12V

+24V sensing

-24V

10V

+5V sensing

ZD20

(Power for 24V, 38V (output control circuit)

0

0

0

Q1 Collector-emitter voltage waveform

Q1 Collector current waveform

D6, D7, D8 operation voltage

With 100V input and rated load

9 – 13

5 Invertor circuit (Forward convertor system)The 38V output as well as the 24V output employs the forward con-vertor system. Only the 38V circuit, therefore, is described here.

Switching transistors Q5 and Q6 (Q3 and Q4) connected in parallel toeach other are turned on/off by drive transformer T5 (T3) which isdriven by the signal from the control circuit in the secondary side,converting the input DC voltage into high frequency pulses. The high frequency pulses are dropped by convertor transformer T4(T2), rectified by diode D23 (D21), and smoothed by L5, C35, andC34 (L4, C29, and C30). When the secondary side control circuit turns on the drive trans-former, a voltage is generated at the gate of Q5 and Q6 (Q3 and Q4)in the primary side to conduct the transistor. Then a voltage is applied to the primary winding of the convertortransformer T4 (T2), generating a voltage in the secondary winding toconduct the same phase side of D23 (D21) as the transformer, sup-plying the power to the load. When the drive transformer turns off, a counter-electromotive force isgenerated in the primary side to pull down the gate voltage of Q5 andQ6 (Q3 and Q4) and no voltage is generated in the secondary side.Since, however, a current has been flowing through L5 (L4), acounter-electromotive force is generated by that current to conductthe flywheel side of D23 (D21), supplying the power to the load.

6 Output voltage control circuitThe output voltage is controlled by the PWM (Pulse Width Modula-tion) method. The output is detected by the control IC, IC5 (IC4), andis inputted into the error amplifier in the IC together with the IC’sreference voltage to control the ON/OFF time of Q5 and Q6 (Q3 andQ4) through the PWM convertor and the drive transformer, stabilizingthe output. The 24V output control circuit is equipped with the control circuit(R114, R55, R56, Q7, Q13) so that the 24V circuit may not start untilthe 38V output rises. That is, all outputs are off until the 38V outputrises because all of 5V, 10V, –24V, and 24V are under the sequencecontrol.

7 Overcurrent protection circuitThe negative $ line of the secondary side is connected with detect-ing resistors R66 and R67 (R44 and R45), which detect an overcurr-ent and send signals to the control IC, IC5 (IC4), decreasing the ONwidth of the pulse and reducing the output voltage. The output of thiscircuit is of 71-character characteristics.

8 Chopper regulator circuit (5V system)The 5V system is directly pulled down from DC 38V through thechopper circuit (Q15, L6). The switching frequency is determined byCR of 5 pin and 6 pin of IC5, and switching is performed at about70KHz. Q15 is a switching transistor. Smoothing is performed by D29, chokecoil L5, and electrolytic capacitor C55 to supply 5V.

FB13

F3

3.0A250V

D14ERB44-10

(2)

T4PT-X57 (9)

(10)

(4) (5)

R107120K3W

C390.1400V

D15ERB44-10

FB14(13)(12)Q5

2SK1082

ZD10RD22EB1

ZD11RD22EB1

R1102701/2W

Q62SK1082

ZD12RD22EB1

C40580P1KV

R1131001W

D1910DF8

ZD13RD22EB1

R1092701/2W

D17

AL01Z

R22101/2W

R10B 10 1/2W

C41 3300P

C42 3300P

(7)

(5) T5 DT-P20

(4)

(2)

(3)

(1)(6)

R691K1W

C470.150V

D201SS53

+ C4610016V

FB4

FB5

R635.61W

C43470P1KV

FB9

FB10

D23ESAD92M-03

FB6

C451000P1KV

C521000P1KV

L5HK-20D160-1810

R514.99K

R644.99K

R62A120

R68 +

R66 CMW-1.2-P15R67 CMW-1.2-P15

+

C44470P1KV

R62B31.6

C35330050V

C34330050V

D15 AL01Z

0

0

0

Q5, Q6 (Q3, Q4) Drain-source voltage waveform

Q5, Q6 (Q3, Q4) drain voltage waveform

Q5, Q6 (Q3, Q4) gate waveform

R62B(R42B)

R62A(R42A)

R67(R45)

R66(R44)

To IC error amplifier

Transformer pin side

Output pin side

9 – 14

Control is performed by IC6. The internal reference voltage of IC6and the divided voltage of the output are inputted to the error ampli-fier to control the ON/OFF time of Q15 through the PWM comparator,stabilizing the output. To protect the circuit against an overcurrent, the output current isdetected by R105. If an overcurrent is detected, the ON width of Q15oscillation pulse is narrowed to drop the voltage.

9 Overvoltage protection circuitWhen the 38V output, the 24V output, or the 5V output reaches anovervoltage state, all the outputs are latched. An overvoltage state of the 38V output is detected by ZD18, the 24Voutput by ZD16, and the 5V output by ZD17. The detected signal is applied to the gate of thyristor SCR1 to con-duct SCR1. Then Q14 is turned on to stop oscillation of the 38Vcontrol IC. When the 38V output stops oscillation, as stated above, allthe outputs are turned off by the sequence control circuit, protectingagainst an overvoltage. The operation is of the latch system, and theAC power is supplied again after removing the overvoltage.

F FW system output circuit

The AC input voltage is full-wave rectified by D2, D18, D24, D30. Ifthe pulse voltage is higher than the cut voltage of ZD4, photocouplerPC1 conducts. If it is lower than the cut voltage of ZD4, photocouplerPC1 does not conduct. This repeats ON/OFF of the photocoupler.voltage transmitted to the secondary side by the photocoupler turnsON/OFF Q10 to supply the FW signal.

D1810E6

D3010E6

D2410E6

D210E6

R15 R16

12K1W

12K1W

R1733K1W

ZD4RD3.0EB2

R112

100

PC1

PC-113

R19 47K

ZD5RD6.2EB1

R204.7K1/2W

Q102SC945

C220.1

R232.7K

AC

AC

38V

FW

GND

Secondaryside

Primaryside

Waveform between 1 and 2

FW output

Each waveform

9 – 15

5. RADF Electrical section

(1) GeneralThis circuit controls paper feed, transport, stop, and paper exit, and is composed of various sensors, switches, the circuit which processes inputsfrom the PPC, the circuit which drives motors, brakes, and solenoids, the CPU, and its peripheral circuits.

(2) Block diagram

DFMRS

DETMRS

DTMRS

DTWS

DRS

DWS

DTS

RDD

A

B

C

D

E

SGNDTXDRXDDTADSR

RESETS_SOL

SSW

TPSW

DLS2

DLS1

DSD

+5VSGND

+24VPGND

+5V+10V

F

E

EEPROM(IC23)

CPU(IC21)

ROM(IC25)

AUOD

TGOD

+24V

F

G

J

HI

G

LKH

CB

DFM

DTM

DEM

DBRK

DRSOL

D

A

I

J

K1.06KHzoscillationcircuit

L

LEDlightingcircuit REMOVE

ORIGINALlamp

Communicationcircuit

Paper feed motorrotation sensorinput circuit

Paper transportmotor rotationsensor inputcircuit

Paper exit/reversemotor rotation sensorinput circuit

Tray width sensorinput circuit

Original resist sensorI/O circuit

Original widthsensor I/O circuit

Timing sensorI/O circuit

Paper exit/reversesensor I/O circuit

Powercircuit

Chip selectcircuit

Reset cirucit

Original set sensorI/O circuit

Tray feed size sensor 1input circuit

Tray feed size sensor 2input circuit

Stream mode switchinput circuit

Thin paper mode switchinput circuit

ADF open/close switchinput circuit

Reverse guide open/closeswitch input circuit

ExternalI/O

(IC24)

DIP switch

Push switch

429Hzoscillationcircuit

9.83Hzoscillationcircuit

ADF FEED lamp

Stopper solenoid drivecircuit (for controlling themain body)

30KHzoscillation circuit

Reverse solenoiddrive circuit

Transport brakedrive circuit

Paper exit/reversemotor drive circuit

Paper exit/reversemotor speed controlcircuit

Current limitingcircuit

Tramsport motordrive circuit

Paper feed motordrive circuit

Paper feedmotor speedcontrol circuit

9 – 16

(3) Operations

1 Sensor/detector input circuit

a. Paper exit/reverse original sensor (RDD) input circuit

Paper exit/reverse sensor input circuit[Fig. 1]

The paper exit/reverse original sensor is a reflection type sensor composed of an LED and a photo transistor. Infrared rays reflected by the LEDare radiated to the photo transistor, increasing the photoelectric current flowing through the photo transistor to detect the original.This circuit is equipped with the automatic adjustment function by the CPU and is able to maintain the sensor sensitivity at a constant level.The LED cathode is connected to the voltage-current conversion circuit which is composed of the operation amplifier (IC26) (IC26), Q25, andR134. It controls the current value with the D-A output (analog voltage value) of the CPU. That is, IC26 9 pin input voltage (voltage drop of LEDcurrent by R30) is always made equal to the CPU D-A output value (66 pin). So varying the D-A output varies the current value.On the other hand, the photoelectric current of the photo transistor is converted into a voltage by the emitter resistance in the sensor PWB,passed through the noise filter composed of R65 and C71, and inputted to IC27 10 pin and the CPU 63 pin. R3, R26, R135, IC27, and IC4compose the voltage comparator which compares the input voltage from the sensor and the threshold voltage (about 1V) formed by dividing +5Vwith R3 and R135. When the input voltage from the sensor exceeds the threshold voltage, the output at IC27 13 pin is inverted to be LOW andinputted to the CPU 17 pin as "Original present" signal. The CPU 63 pin is the A-D input pin, and the analog voltage is converted to the digitalvalue in the CPU.In the direction of the sensor optical axis is the background plate whose reflection factor is smaller than that of the original. This backgroundplate provides the emitter voltage of the photo transistor, which serves as the reference voltage of "original absence." Since the sensor sensitivityvaries depending on the unit in general, the sensor sensitivity is automatically adjusted according to the reference voltage of "original absence."The sensor voltage at "original absence" is A-D-inputted to change D-A output voltage. Then the LED current (LED light intensity) is changedand the sensor voltage is controlled to be a specified level by the CPU. The D-A output value is unique to each unit and is stored in theEEPROM (IC23) memory.

b. Original resist sensor (DRS)/timing sensor (DTS) input circuit

Original resist sensor/timing sensor I/O circuit[Fig. 2]

The original resist sensor and the timing sensor are of reflection type similarly to the paper exit/reverse original sensor. Either circuit is equippedwith the automatic adjustment function, and is composed similarly. This circuit, however, is additionally equipped with the analog switch signalselect circuit because the CPU D-A pin is commonly used by two sensors. That is, when the select signal from the CPU 74 pin is at HIGH,IC15.2 conducts and IC15.1 stops conduction. As a result, the D-A value of the timing sensor is outputted from the CPU. When, on the contrary,the CPU 74 pin is at LOW, the original resist sensor is selected and the D-A value of the original resist sensor is outputted from the CPU.

+5V CN45,4

RDDLEDVOUT

SGND

RDD+5V

SGND

CN15,1CN15,2CN15,3CN15,4

CN15,1CN15,2CN15,3CN15,4

RDDLED+5VCN5,1

SGND

CN45,3LED CN45,2

CN45,1

1

2

TLN199

RDD2

1

2

PH110 3

1

4B4B-PH-K-S

1

2

68K

CN5,5

CN5,6CN5,2

RDD

15

62

DF3-6P-2DSA+5V

+5V +5V

2

1

2

1R126ERJ6GEYK225V

2.2M1 2

1

2

R3ERJ6GE-YJ392V3.9K

R65ERJ6GEYJ103V10K

C71 GRM40B-103K50PT

0.01µF

1

2

1110

12+-

1 2

R26ERJ6GEYJ303V30K

IC27.4

µPC339G2

C

E

Q25 2SC2712Y

C

E

2

1

1 2

R134ERJ6GEYJ102V1K

IC26.3µPC324G2

8109 1

2 1

2

+5V

GRM40B102K50PT100PF

C16

R43

ERJ6GEYJ103V10K

TP4

1

TP13

1

TRHS DA

TRHS AD

66

63TRHS 17

CPU

SGND

SGND

+-A

K

Paper exit/reverse sensor

+5V CN44,4VOUT

SGND

CN44,3LED CN44,2

CN44,1

1

2

TLN199

DRS2

1

2

PH110 3

1

4B4B-PH-K-S

1

2

68K

C

E

A

K

CN4,1CN4,5 DRSLED

+5V

CN4,6CN4,2 SGND

DRS

15

26

+5V

+5V

1

2

1 2

R122

ERJ6GEYK225V2.2M

C681

2

GRM40B103-K50PT

0.010µFSGND

54

+-

1

2R34 ERJ6GEYJ103V 10K

R1 ERJ6GEYJ472V 10K

+5V1

22

1

2

R131ERJ6GEYJ472V4.7K

R27ERJ6GEYJ473V47K

IC27.1

µPC339G2

R27 ERJ6GEYJ473V10K

1 2

32

+-

1C

E

2

3

1B

1 2

R130ERJ6GEYJ102V

1K

IC28.1

µPC324G2 R28ERJ6GEYJ510V

51

1

2

SGND

C14GRM40B102K50PT100PF

ERJ6GEYJ225VR121

2.2M

1

2

YA

B

IC1.3

10

9

2

IC15.1HD74HC04FP

X11 1 1

13

8

HD74HC00FP

1

2

6 5

IC2.3

HD74HC04FP

TP24

1

TP23

1

R33ERJ6GEYJ225V

10K

+5V

74

671965

RES_DA

RES_ADRES

CPU

+5V CN44,4VOUT

SGND

CN44,3LED CN44,2

CN44,1

1

2

TLN199

DRS2

1

2

PH110 3

1

4B4B-PH-K-S

1

2

68K

C

E

A

K

CN4,9 DTSLED

CN4,6 DTS

9

10

+5V

+5V

1

2

1 2

R125ERJ6GEYK225V

2.2MC70

1

2

SGND

54

+-

1

2R37 ERJ6GEYJ103V 10K

R2 ERJ6GEYJ472V 10K

+5V1

22

1

2


R25ERJ6GEYJ473V47K

IC27.3

µPC339G2

R38 ERJ6GEYJ473V10K

1 2

56

+-

7C

E

2

3

1B

1 2

R132ERJ6GEYJ102V

1K

IC28.2

µPC324G2 R29ERJ6GEYJ510V

51

1

2

SGND


ERJ6GEYJ225VR124

2.2M

1

2

YA

B

IC1.4

10

9

2

IC15.2HD74HC04FP

X11 1 1

8

HD74HC00FPTP14

1

TP15

1

1664

TIMSTIMS_AD

DF11-16DP-2DSA

SGND

DF11-16DP-2DSA

GRM40B103K50PT0.010µF

Q24 2SC2712Y

Q23 2SC2712YOrugunal resist sensor

Timing sensor

9 – 17

c. Paper fed motor rotation sensor (DFMRS), transport motor rotation sensor (DTMRS), paper exit motor rotation sensor (DEMRS)

[Fig. 3]

The sensors are composed of a photo interrupter with a built-in amplifier and a slit disc attached to the motor shaft, and provide pulse signalscorresponding to the motor rotation. The motor rotation is detected with the pulse signal frequency. By counting the number of pulses, the motorrotations can be detected. The input section of the three signals are of the same composition. Signals are processed by the noise filtercomposed of R86, 87, 88, C8, 9, and 10 and the waveform rectifying circuit of IC17.

d. Tray original size detection circuit

Tray width sensor, tray feed size snsor 1, tray feed size sensor 2 input circuit[Fig. 4]

This circuit detects the size of the original on the tray. The detecting section is inside the tray. The original width is detected by the volume(DTWS), and the original length by two photo interrupters (DLS1, DLS2).DTWS is the variable resister attached to the original guide. DTWS position is varied by the sliding distance of the original guide.The valul of variable resister fixed by position of original size guide.DLS1 and DLS2 are equipped with a lever-type actuator. When the actuator is pressed by the original, the light path is interrupted and theoriginal size is detected.The signal is inputted to IC24 1, 2 pin through the noise filter composed of RA7, 2, 3, C19, and 20.

+5V

SGND

123

VCCVOUTGND

TLP1215(C1)

DFMRS

+5V

CN1.1 DFMRS

DF11-16DP-20SA1 1

TP26

CPU 3pin

KMTCLK(To the paper feed motor speed control circuit)

IC7.1

1

2

2

1


SGND

R86ERJ6GEYJ472V

1 2

4.7K

1

2

ACLY

RA6.1RGLD6X103J10K

+5V

SGND

123

VCCVOUTGND

TLP1215(C1)

DTMRS

+5V

CN5.3 DTMRS

DF3-6P-20SA3 1

TP27

CPU 2pin

IC7.2

1

4

2

3


SGND

R87ERJ6GEYJ472V

1 2

4.7K

1

2

ACLY

R84RGLD6X103J10K

+5V

SGND

123

VCCVOUTGND

TLP1215(C1)

DETMRS

+5V

CN5.4 DETMRS

DF3-6P-20SA4 1

TP38

CPU 79pin

HMTCLK(To the paper exit/reverse motor speed control circuit)

IC7.3

1

6

2

5


SGND

R88ERJ6GEYJ472V

1 2

4.7K

1

2

ACLY

R85RGLD6X103J10K

HD74HC14FP

HD74HC14FP

HD74HC14FP

Paper feed motorrotation sensor

Paper feed motor rotation sensor input circuit

BMTCLK(To the paper feed motor speed control circuit)

Transport motor rotation sensor input circuit

Paper exit/reverse motor rotation sensor input circuit

Transport motorrotation sensor

Paper exit/reverse motor rotation sensor

+5V

SGND

123

VCCVOUTGND

TLP1217(C1)

+5V

CN4.12 TryS_1

DF11-16DP-20SA12 1

TP17

1

2


SGND

RA7.2RGLD5Y472J

3 4

4.7K

1

4

RA6.3RGLD6X103J10K

TRYS1 2

DLS1

CPU(IC21)

+5V

SGND

123

VCCVOUTGND

TLP1217(C1)

+5V

CN4.13 TryS_2

DF11-16DP-20SA13 1

TP18

1

2


SGND

RA7.3RGLD5Y472J

5 6

4.7K

1

5

RA6.4RGLD6X103J10K

TRYS2 1

DLS2

+5V

SGND

123

CN4.4 TryVR

DF11-16DP-20SA4 1

TP29

1

2

R69ERJ6GEYJ331V

1 2

330

TRYWS 62

VB16L43

DTWS

C67GRM40B103K50PT

0.010µF

1

2

SGND


(IC24)

Tray width sensor

Tray feed sizesensor 1

Tray feed sizesensor 2

9 – 18

e. Open/close switch (AUOD, TGOD) input circuit

ADF open/close switch, reverse guide open/close switch input circuit[Fig. 5]

This circuit detects open/close of the ADF unit and the reverse guide, and is connected with two microswitches.Either switch contact is closed byclosing each open/close section. The microswitches are connected in series from +24V, and directly open and close the power for each drivesection. That is, only when both switches are closed, the power is supplied to the drive section.When the ADF open/close switch is turned on, +24V is applied to the ZD1 cathode, providing a current to the Q9 base through R29. Then R29 isturned on and the open/close signal is inputted to IC24 40 pin. In other open/close switch input circuits, the operations are the same as aboveand each open/close signal is inputted to IC24.Besides, R19 and C29 form the snubber circuit which absorbs the induced voltage generated when the open/close switch is opened during theDC motor rotation.

f. Original set detector (DSD), stream mode switch (SSM), thin paper mode switch (TPSW)

Stream mode switch, thin paper mode switch input circuit[Fig. 6]

Original set sensor input circuit[Fig. 7]

This circuit inputs each sensor and switch signal, and forms a noise filter. The original set detector is a photo interrupter integrated with an LEDand a photo transistor. The stream mode switch and the thin paper mode switch are mechanical slide switches.

CN7.1 DC+24V

BSP-VH1

CN7.2 DF opn2

DC+24V

1 2K A

12V

ZD1RD12MB2

1 2

4.7K

R92ERJ6GEYJ472V

+5V

C 2

E 3

Q9FA1L3N

1

2

1

2

C 2

E 3

SGND

CN6.1

B10P-VH1

CN6.22

1B

1B

Q10FA1L3N

DF opn

R opn1 2K A

12V

ZD2RD12MB2+24V

1

2

R19ERD25FAJ4R74.7

1 2+

C2950TWSSION

10µF

PGND

R67ERJ6GEYJ103V10K

R68ERJ6GEYJ103V10K

40

39

DFOPEN

ROPENExternal I/O(IC24)

ADF open/closeswitch (AUOD)

Reverse guideopen/close switch(TGOD)

+5V

CN4.15 THINSW

DF11-16DP-2DSA15 1

TP20

1

2


SGND

RA7.5RGLD5Y472J

9 10

4.7K

1

7

RA6.6RGLD6X103J10K

THINSW

External I/O(IC24)

SGNDTPSW

37

+5V

CN4.14 SDFSW

DF11-16DP-2DSA14 1

TP19

1

2


SGND

RA7.4RGLD5Y472J

7 8

4.7K

1

7

RA6.5RGLD6X103J10K

SDFSW

SGNDSSW

38

Stream mode switch

Thin paper mode switch

+5V

SGND

123

VCCVOUTGND

TLP1215(C1)

+5V

CN4.11 Emp_s

DF11-16DP-2DSA11 1

TP16

1

2


SGND

RA7.1RGLD5Y472J

1 2

4.7K

1

5

RA6.2RGLD6X103J10K

EMPS 4

DSD

External I/O(IC24)

Original setsensor

9 – 19

g. Original width sensorThe original width sensor is a phote penetrate type sensor, and is composed of an LED and a photo transistor. Infrared ray from the LED isinterrupted by the original to reduce a photoelectric current flowing through the photo transistor, thus detecting the original. This circuit canchange the light emitting output with the volume (VR1) and absorbs variations depending on the machine.The photoelectric current of the photo transistor is converted into a voltage by the emitter resistance, and the voltage is passed through the noisefilter composed of R36 and C69 to IC27 6 pin and 61 pin. R90, R91, R8, and IC27.2 form a voltage comparator which compares the inputvoltage from the sensor and the threshold voltage generated by dividing +5V with R90 and R91. When the input voltage from the sensor fallsbelow the threshold voltage, IC27 1 pin output turns HIGH and "original presence" is outputted to the IC24 3 pin. At the same time, the inputvoltage from the sensor is inputted to the CPU 61 pin.

[Fig. 8]

2 Motor control circuit

a. Paper feed motor (DFM) control circuitThis circuit maintains the motor speed at a constant level, and controls power supply to the paper feed motor so that the frequency of the paperfeed motor rotation sensor signal coincides with the frequency of the reference clock signal.This circuit is largely divided into five blocks:(A) Reference clock select circuit, (B) One-shot pulse generating circuit,(C) Low pass filter circuit, (D) PWM circuit, and(E) Over-shoot prevention circuit.

Paper feed motor speed control circuit block diagram[Fig. 9]

[Fig. 10]

CN4.7 DWLS

CN4.8 DWRS

SGND

1 3 1 2

VR3PK502H202H0

2K

R4ERJ6GEYJ121V

120

+5V

12

R123ERJ6GEYJ225V

2.2M2

10K

R36ERJ6GEJ103V

C69GRM40B103K50PT

0.010µF

R91ERJ6GEJ472V4.7K

1

2

1

2

1

2

+5V

SGND

R90ERJ6GEJ472V

4.7K

7

6

R8ERJ6GEJ473V

1 2

47K

1

IC27.2

µPC339G2

+

-

V+=+5VGND=SGND

SIZESIC23-3pin

CPU-61pin

7

8

OC

1 2

+5V

+1 2

1

2

R44

ERJ6GEYJ103V

10K

R107

ERJ6GEYJ104V

100K

C25

1.0µF 1

2

K

A

SGND

SGND

1 2

R11

ERJ6GEYJ473V

47K 1 2R11

ERJ6GEYJ103V2

31

TP 5

µPC350G2

IC

4318

161565

13146911

10

C1C1C2C2

CL+CL-

RC

CA-CA +

Ref

IC31

-

+

+5V

SGND SGND

1

2

1

2

1

2

1

2

+5V

1

2

-+

REFV56K

56K

C23

GRM40B102

-K50PT

1000µF

IC19.8

µPC350G2

5

67

C 2

R96

ERJ6GEYJ202V

47KR10

ERJ6GEYJ473V

47K

1 2

1 2

1 2

1 2

12+

1.0µFSGND

SGND

1

2

R9

ERJ6GEYJ473V

47K

1 2

1 2

1 2

1

2

1 2

SGND

SGND

REFVR11

ERJ6GEYJ103V

D 8

DSA119

R16

ERJ6GEYJ103V

10K

10K

R17 ERJ6GEYJ103V 8.9K

R11

ERJ6GEYJ103V

1 2

IC2.1

89IC9.4 13

1211

89

10

1112

13

IC3.4

HD74HC00FP

HD74HC00FP

IC3.3 HD74HC00FP

IC11.4

HD74HC00FP

AB

Y

A

BY

A

BY

SYNCHRO

1

21

2

+5V

12

31

CPU

TOUT

KMOT SPD

KMTP1-1

KMTP1-2

BMTCLK

89IC9.4 4

56

31

2

89

10

IC3.4

HD74HC00FP

HD74HC00FP

IC3.3 HD74HC00FP

IC11.4

HD74HC00FP

AB

Y

A

BY

A

BY

31

2AB

Y

31

2AB

Y

10111213

9

8

+5V

KMTCLK

IC17.2

CLK

10111213

9

8

+5V IC17.2

CLK

10111213

9

8

+5V IC17.2

CLK

10111213

9

8

+5V IC17.2

CLK

1111

KMTP1s1

Tout

KMTCLK

AKMOT_SPD

KMTP1s2

BMTCLK

SYNCHRO

BC

E

D

KMOT_Low

Paper feed motorPWB signalKMOTPWM

PWMPaper feed motor rotation clock

CPU refernce clock

Paper feed motor refernce clock(For original paper feed)

Clock select signal(Original paper feed & lead edge take-up)Paper feed motor reference clock(Original lead edge take-up)

Transport motor rotation clock

Clock select signal(Synchronization between the paper feed motoe and the transport motor)

Referenceclock selectcircuit

One-shot pulsegeneratingcircuit

Low passfilter

Phasecompensationcircuit

PWBcomparator

Low-speed rising signal Over-shootprevention circuit

9 – 20

The basic operations are: the paper feed motor circuit signal and the reference clock frequency are converted into a voltage, amplified andintegration-compensated, and pulse-width modulated. The paper feed motor speed can take synchronization either transport motor rotation clocksignal or reference clock signal. When rasing to a low speed, the duty range of the PWM signal is forcibly limited to reduce over-shoot of themotor speed. Each block operation is described below:

(A) Reference clock select circuitThis circuit selects the rotation speed reference clock signal, and is composed of two AND gates (IC4), one OR gate (IC11) and an invertor(IC8). When the select signal from IC24 19 pin is LOW, the transport motor rotation signal is selected. When the signal is HIGH, the clocksignal from the oscillation circuit is selected and outputted to the next stage circuit.

(B) One-shot pulse generating circuitThis circuit generates one-shot pulses which are required for converting the frequency of the reference clock and the paper feed motorrotation signal into a voltage. The one-shot pulse width is obtained by counting the CPU internal system clocks 2048 times.

(C) Low pass filterThis circuit generates a voltage from the difference in frequencies of signals from one-shot pulse array generated according to the referenceclock and the paper feed motor rotation signal.The secondary low pass filter is composed of IC29.2, RA1, C23, R10, C2, and R9. RA1, 3, RA1, 4 are consisted of additon circuit.This circuit cuts frequencies of about 100KHz or more. That is, the paper feed motor rotation signal carrier frequency is cut and only lowfrequencies generated by variations in the motor speed are passed.The two one-shot pulse arrays have polarities. If both are in the same frequency, the average voltage of added signal is 2.5V. If there is anydifference between frequencies, the average voltage shifts from 2.5V. When, therefore, the frequency is higher than the reference clock (thatis, when the paper feed motor rotates faster than the set speed), the output of this circuit is lower than 2.5V. when, on the contrary, thepaper feed motor rotation signal is slower than the reference clock, the output is higher than 2.5V.

(D) PWM circuitThe speed deviation signal obtained from the low pass filter in the former stage is integrated and phase-compensated and pulse-withmodulated.IC31 is the PWM generator including the error amplifier, the saw teeth waveform generating circuit, the comparator, and the output buffer. Itis connected with R96, R46, C1, C66, and the error amplifier in IC31, forming the integration/phase compensation circuit. R17 and C4determines the frequency of saw teeth waveform.The frequency is approximately 17.5KHz.The voltage of the integrated deviation signal is compared with that of the saw teeth waveform, and the deviation signal becomes a pulsesignal of duty ratio in proportion to the deviation signal voltage. In addition, the stationary period adjustment comparator is also included inIC31, and applying a voltage to 4 pin lengthens the OFF period of the PWM signal.The IC 31PWM on daty is bigger when paper feed motor rotation spead is increasing.

IC31 (µPC494GS) internal block diagram[Fig. 11]

(E) Over-shoot prevention circuitWhen the paper feed motor is risen at a low speed, its speed becomes too high in transition. To prevent against this, the circuit lengthensthe OFF period of the PWM signal forcibly to suppress power supply to the paper feed motor.This circuit is an integration circuit composed of IC29.1, C24, and R107. When the low speed rising signal outputted from IC23 8 pinbecomes LOW, the IC29 1 pin output becomes HIGH. Then the voltage settles to 0V. The time length is set according to the motor risingtime. The OFF period of the PWM signal is controlled by inputting the signal to IC31 4 pin.

12

14

7

6

5

VCC

Ref Out

GND

Rt

Ct

1

2

16

15

3

4

+

-

+

-

+

-

+

-

13

8

9

11

10

PWM comparator

TF/F

PWM output

PWM output

Referncevoltage input

Low-inputmalfunctionprevention circuit

Oscillationcircuit

Dead time convertor

Dead time control

Non-reverse input

Reverse input

Non-reverse input

Reverse input

Feedback 3

Error amplifier 1

Error amplifier 2

Output control

9 – 21

b. Paper feed motor (DFM), transport motor (DTM) drive circuit

[Fig. 12]

This circuit controls each motor rotation/stop and the rotating direction. It is composed of the exclusive-use hybrid IC (IC29, IC20) and the powerMOSFET (Q2 ~ 5, 13 ~ 16). The paper fed motor drive circuit is composed similarly with the transport motor drive circuit. So only the transportmotor drive circuit is described here.The motor rotation, stop, and rotating direction are controlled by combination of logic of the CPU 8 pin and 9 pin outputs. The CPU 78 pinsupplies the PWM output for the speed control.In the normal rotation of the motor, 8 pin is LOW, 9 pin is HIGH, 78 pin is HIGH, IC20 2 pin is LOW, 8 pin is HIGH, and Q16 and Q2 turn ON.While IC9 4 pin is HIGH, 6 pin is LOW, and Q3 and Q15 turn OFF. Therefore a current flows through +24V → Q16 → CN6, 7 → motor → CN6, 8→ Q2 → AGROUNG, rotation the motor clockwise.When the CPU 78 pin is made LOW under this state, IC9 2 pin becomes HIGH and Q16 turns off. Therefore the current from +24V isinterrupted. However, with the motor coil inductance, a loop current flows through AGROUND → Q1 flywheel diode → CN6, 7 → motor → CN6,8 → Q2 → AGROUND. In this case, the motor is in the speed reduction state. The motor speed is controlled by adjusting the H/L duty of thePWm signal and controlling the pulse the voltage supplied to the motor.In the reverse rotation, the CPU 8 pin becomes HIGH, IC20 2 pin and 6 pin are HIGH, Q15 and Q3 turn ON, and Q16 and Q2 turn OFF. Then acurrent flows in the reverse direction to the normal rotation, through +24V → Q15 → CN6, 7 → Q3 → AGROUND. Therefore, the motor rotatescounterclockwise. The speed control is performed in the same manner as the normal rotation. To stop the motor, the CPU 8 pin and 9 pin areturned to LOW. Then IC20 2, 4, 6, 8 pins become HIGH, Q15 and Q10 turn OFF, Q2 and Q3 turn ON. As a result, both pins of the motor areshorted and the motor enters the brake mode. In the brake mode, a powerful brake torque is generated to stop the motor.

7

5

3

9

MODE2 D8

6

4

2

MODE1

CUE

PWM

C

B

A

+5V

1

2

R71ERJ6GEYJ331V330

R70ERJ6GEYJ331V

330

1

2

1 2

R97ERJ8GEYJ202V2.0K

1

2

R99ERJ8GEYJ202V2.0K

G

S

D

13

2

Q142SJ176

GS

D

1

2

3

Q42SK1895

10P

11P

C_Limit

CPU

PWM

IC19VCC=+5VGND=SGND

LSI-N9101MTD

1 2

R103ERJ8GEYJ202V

2.0K

K

A

1

2

D16HRP22

K

A

1

2

D11HRP22

+24V

G

S

D

13

23

4

Q132SJ176

GS

D

1

2

3

Q52SK1895

Limit

1

2


+5V

1

2

R52ERJ6GEYJ103V10K

R51ERJ6GEYJ103V

10K

1

2

1 2


1

2


G

S

D

13

2

Q162SJ176

GS

D

1

2

3

Q22SK1895

CPU

1 2

K

A

1

2

D12HRP22

K

A

1

2

D13HRP22

+24V

G

S

D

13

2 78

Q152SJ176

Q32SK1895

1

2

7

5

3

9

MODE2 D8

6

4

2

MODE1

CUE

PWM

C

B

A

IC20VCC=+5VGND=SGND

LSI-N9101MTD


GS

D

1

2

3

1 2

1 2

R72ERJ6GEYJ331V330

R73ERJ6GEYJ331V

330

78

8

9


CN7.4CN7.3DFM1

DFM2

CN6.8CN6.7DFM1

DFM2

Paper feedmotor

Transportmotor

9 – 22

c. Paper exit speed control circuitThis circuit is composed of the paper exit motor speed control IC (IC35), and selects the motor speed from two levels (2503.5/465 rpm) by thesignal from the CPU 6 pin. The motor speed can be adjusted with the volume.The low speed (465 rpm) is set with VR1, and the high speed (2503.5 rpm) by VR2.The speed control is described below:IC35 4 pin receives the output pulse from the DEM rotation sensor (DEMRS). IC35 6 pin and 5 pin are connected with R109, VR1 or R53, VR2,and capacitor C6. The time constant of the IC internal timer is determined by C and R constant. The motor speed is determined according to thetime constant.IC35 8 pin is used to convert the internal rectangular waveforms into integrated waveforms, and is connected with external C and R for controlphase compensation. IC35 9 pin output is inputted to IC28 1 pin, rectified and converted into rectangular waveform, and inputted to IC5 1 pin.The circuit operations when the motor speed falls below the specified level are described below:When the motor speed falls, IC35 4 pin input pulse period is extended. That shortens charging time of capacitor C6 to increase HIGH level areaof IC35 9 pin output integrated waveform. Consequently the IC28 duty is increased. As a result, the motor drive effective voltage increases toincrease the motor speed. When the motor speed rises above the specified level, the reverse operations are performed, thus maintaining themotor speed at a constant level.

[Fig. 13]

d. Shutter-solenoid (SSOL) drive circuit

[Fig. 14]

This circuit drives the shutter solenoid which operates the original bundle stopper plate, and is composed of the PWM control circuit whichsuppress temperature rise in the solenoid winding and the power MOSFET, etc.The differential circuit is composed of C27, R142, R110, and D10. IC6.5 and IC2.5 are inventors for rectifying waveforms. When the CPU 13 pinis turned to LOW, a LOW level one-shot pulse of about 70ms is generated at the IC2 8 pin. During that operation, Q8 gate is fixed to HIGH. So+24V is continuously applied to the solenoid to absorb the iron core. When the one-shot pulse is completed, Q8 is driven byduty 50% frequency 10KHz pulse signal .Accordingly solenoid ON duty also becomes 50%.Under this state, even in OFF period of Q8, a loop current flows through D14 by the solenoid inductance. The average value of current becomes1/2 of the case of 100%, and power loss (heat quantity) in the solenoid winding becomes 1/4. In addition, the absorbing power of iron core isreduced by half. However, the solenoid characteristics provides enough power when the iron core is completely absorbed, and the iron core isnot released even when the current reduces to 1/2.In this manner, 100% power is supplied to the solenoid only when absorbing the iron core, and the iron core is attracted by strong power. Afterabsorption, the current value is reduced to 50% to limit temperature rise in the solenoid.

R109ERJ6GEYJ104V100K

1

2

1

2

1

2

1

2

+5V+5V

HMTCLK

HMOT_SPD6

K

A

1

2

D11S1588

E 3

C 2

1B

Q18FNJL3L

12

SGND SGND

SGND

10 2 3

4

6 7 5 1

INsy

VCC IN- OUTamp

VS GND CRt IN+ CF

OUT9

8

3

VR1PK502H204H0200K

1 2

R53ERJ6GEYJ103V10K

VR2PK502H204H020K

1 3

2

SGND

1

2

C65DF2D223K0.022µF

1

2

C65DF2D103J

0.010µF

R7ERJ6GEYJ473V47K


C2650TNSS1M1.0µF

1

2

R55ERJ6GEYJ103V10K TP37

125

4+

-

IC28.1

µPC339G2

CPU

GS

D

1

2

3

+5V +5V

TP33

1

1

2

R62ERJ6GEYJ103V10K

C2750TWSS1N

1.0µF

+12

CPU13pins

R142ERJ6GEYJ102V

1 2

1K

R110ERJ6GEYJ104V

100K1

2

K

A

1

2

D10DSA010

11 10

IC6.5

HD74HC14FP

A Y A Y

IC2.4

HD74HC04FP

9 8 1 2K A

D9DSA010

1 2CLK1

R63ERJ6GEYJ103V10K

A

BY

IC11.2HD74HC32FP 12

KA

D9DSA010

4

56

+5V

1B

E 3

C 2

Q211N1L3N

1

2

R143ERJ6GEYJ751V750

Q82SK1283

Limit

+24V

+24VS_SOL

9 – 23

e. Reverse solenoid (DRSOR)

[Fig. 15]

This circuit drives the reverse solenoid which drives the reverse guide which guides the original to the reverse pulse when reversing the original.It is composed of the PWM circuit and the power MOSFET to reduce the operation noise.When the signal of pin number 4 from CPU is high level to low. The 11 pin level of IC 28 is growing gently. The R120, D2, R61 and C30 areconsifted of integration circuit

The delay time is approximately 70 ms. On the other hand, the integration circuit is connected from R139, R129, C60, and ZD5 to the oscillationcircuit to generate cyclic saw teeth waveforms. The frequency of saw teeth waveform is 100us, which set at shorter level than non-reverse.Therefore, the comparator output frequency is constant, and it becomes the pulse waveform whose duty at HIGH level slowly increases from 0%to 100%.The PWM signal generated by the comparator is inputted to the Q7 gate to pulse-drive the solenoid. Q7 repeats ON and OFF in a short period.However, a loop current flows through D15 with the solenoid inductance, and the solenoid current is not cut off.In this manner, the solenoid is driven by the PWM signal whose ON duty is gradually increased in absorption (when in ON), that is the absorptionoperation is performed moderately, reducing the noise.

f. Transport motor brake (DTB) drive circuit

This circuit drives the brake of the transport motor.The drive signal (ON at LOW) from the CPU is logic-inverted by the invertor (IC6,2) and inputted to the transistor Q1 base.

[Fig. 16]

1 2K A

GS

D

1

2

3

1 2

IC6.1

A Y

+5V

1 2

TP33

1

1

2

R60ERJ6GEYJ103V10K

HD74HC14FP


R139ERJ6GEYJ102V1K

1 2CLK1

CPU4pin

D21S1588

+5V1

2

1

2

C60GRM40B273K25P10.027µF

R129ERJ6GEYJ242V

2.4K

1

2

+5V

R61ERJ6GEYJ103V10K

1

2

C3050TNSS10M10µF

+

SGND

SGND

TP30

1

SGND

1

2

K

A

ZD5RD3-0MB2

11

1013+

-

IC28.4

µPC339G2 1

2

1

2

+5V

R140ERJ6GEYJ102V1K

R141ERJ6GEYJ102V

1K

12KA

D21S1588

DRSOL+24V CN6.3

CN6.4

Limit

Q22SK1283

+24V

34

+5V

1

2

CPU

R64ERJ6GEYJ103V10K

3 4

IC6.2

ACLY

HD74HC14FP

1 2

R138ERJ6GEYJ102V1K

1 2

R95ERJ6GEYJ472V4.7K

1B

C 2

E 3

Q12SD1616

Limit

2A K

1

D5HRP22

+24V

+24V

DTB

CN6.5

CN6.6

5

6

9 – 24

3 Other circuits

a. Current limiting circuit

[Fig. 17]

This circuit limit the motor current ??????? to be a constant level, and is composed of the current detection resistor and the voltage comparator.The negative sides of each motor, the solenoid, and the brake are connected to the pickup resistors R144 ~ 146. The current flowing througheach drive circuit is converted into a voltage by the pickup resistors. The voltage is compared with the reference value by the comparator ofC28,2. The reference voltage, about 0.3V, is obtained by dividing the zenor voltage with R5 and R6.When the pin number 6. of IC 28-2 this circuit has limit function for motor current at sfurting, exceeds the reference voltage, IC28.2 1 pin isinverted to LOW, and interrupting the supply to the motor. Thus the current is limited to a proper level.

b. Oscillation circuitThere are three oscillation circuits: two (1414Hz, 429Hz) for driving the paper feed motor, and one (33KHz) for driving the stopper solenoid andthe reverse solenoid.The three circuits are of the same composition, therefore only the paper feed motor drive circuit (429Hz) is described below:The rectangular wave oscillation circuit of positive feedback is composed of IC36.2, R21, R22, R23, R24, and C63. When IC36 7 pin becomesHIGH, C63 is charged by 5V through R118 and R24. In this case, since R23, R118 and R21 are in parallel, the non-reverse input of IC36 (IC36 5pin) rises to about 3.3V.As C63 is charged, when C63 terminal voltage, that is, IC36 non-reverse input (IC36 6 pin) exceeds the non-reverse input, IC36 output isinverted to LOW, discharging electric charges in C63 through R24.At that time, R22 and R23 are in parallel. Consequently the non-reverse input falls to 1.7V.As C63 discharges, when the terminal voltage falls below the non-reverse input voltage (1.7V), IC36 output is inverted again to HIGH. Thisoperation is repeated to generate oscillation waveforms.

[Fig. 18]

1

IC28.2µPC339G2

66

7-

+

V+=+5VGND=SGND

1

2

+5V

1 2

R116ERJ6GEYJ100V

10

R128ERJ6GEYJ242V

2.4K

1

2

C55GRM40B273K25PT0.027µF

SGND

1

2

1

2R6

ERJ6GEYJ102V1.0K

R101ERJ6GEYJ202V

2.0K

+24V

1

2

R5ERJ6GEYJ201V

200

K

A

1

2

ZD3RD5-1MB25.1V

IC19.203pins

1 2

1

2

PGND

R58ERJ6GEYJ103V10K

Limit

PGND

R146R55X20-39J0.39

1

2

R146R55X20-39J0.39

1

2

R146R55X20-39J0.39

Each motor

149

8 -

+ 3 4

IC7.2

ACLY

HD74HC14FP

1

2

1 2

R119ERJ6GEYJ511V510

1

2

R76ERJ6GEYJ153V

15K

SGND

CLK1

+5V

TP31

+5V

1

2

R75ERJ6GEYJ153V15K

1

2

R77ERJ6GEYJ153V

15K

1

1 2 R16ERJ6GEYJ223V22KC73

GRM40B102K50PT1000PF

75

6 -

+ 13 12

IC8.6

ACLY

HD74HC14FP

1

2

1 2

R117ERJ6GEYJ511V510

1

2

R111ERJ6GEYJ104V

100K

SGND

KMTP1=1

+5V

TP35

+5V

1

2


1

2

R113ERJ6GEYJ153V

100K

1


GRM40B682K50PT6800PF

IC28.3µPC339G2

IC30.2µPC339G2

V+=+5VGND=SGND

75

6 -

+ 11 10

IC7.2

ACLY

HD74HC14FP

1

2

1 2

R118ERJ6GEYJ511V510

1

2

R21ERJ6GEYJ513V

51K

SGND

KMTP1=2

+5V

TP34

+5V

1

2

R23ERJ6GEYJ513V51K

1

2

R22ERJ6GEYJ513V

51K

1


GRM40B333K50PT0.033µF

IC36.2µPC339G2

9 – 25

c. Reset circuit

[Fig. 19]

This circuit generates the reset signal for the CPU and the external I/O LSI, and is composed of IC22 and its peripheral devices. IC22 hasintegrated reset functions, such as power ON reset, +5V abnormal drop reset, and watch dog timer.When the power line (+5V line) reaches about 0.8V after supplying the power, IC22 starts operations. IC22 8 pin becomes LOW to reset theCPU and IC24. The reset state is held until a certain time passes after the power line reaches about 4.3V. The reset hold time is determined bythe capacity of C24. It is about 100msec for this circuit. When the reset hold time passes, IC22 8 pin becomes LOW to output the reset signal.The reset state is held so long as the power voltage is lower than about 4.3V. The reset state is cancelled after 100 msec from when the powervoltage reaches about 4.3V.IC22 3 pin is the watch dog timer clock signal input pin. It uses the original size detection circuit select signal outputted from IC24 22 pin as theclock. When the CPU operates normally, the clocks serve as regular pulse signals of about 100us wide and 5msec frequency. When, however,the CPU is out of order, the clocks are not supplied. Ic22 always monitors this clock. If the clock is terminated, IC22 8 pin becomes LOW after acertain time to output the reset signal. The monitoring time of the clock is also determined by the capacity of C24. It is also 100msec for thiscircuit similarly to the power ON reset hold time.Hard reset can be performed from the PPC body through the communication cable. In this case, CN3-6 pin is turned to HIGH or opened to reset.

d. EEPROM (IC23) circuit

[Fig. 20]

This is a memory to store the adjustment values such as the sensitivity data of reflection type sensors and the original set position data on theglass, and the counter values such as the total number of originals passed. Data communication with the CPU is made through 3-wire serialinterface. The data one stored are retained even when the power is turned off.IC23 1 pin is the chip select pin. It is turned to HIGH when data communication is performed. 2 pin is the serial clock pin, and serial data are sentin synchronization with the clock inputted to this pin. 3 pin is the input pin of serial data from the CPU. 4 pin is the output pin of serial data fromIC20.D3, R115, and C74 forms a circuit which keeps IC23 power voltage level in case of power failure during data writing.

2

3

8

1

6

5

4

CK

+RES

CT

VREF

VCC

GND

IC22MB3773FP

7

1 2

R136ERJ6GEYJ102V1K

+5V

1

2

C31GRM40F104Z-50PT0.10µF

VCC=+5VGND=SGND

C17GRM40F102Z50PT

1000PF

SGND

1

2

1 2

JP2

C2450TMSS1M

1.0µF

1

2

CPU clock

A

K 1

2D6

DSA010

RESET output

+5V

A

K

2

1

D3SB02-030

1

2

R115ERJ6GEYJ100V10

+ 1

2

C742STMSS100M100µF

SGND

6

7

4

1

2

3

D0

CS

SK

D1

ORG

TEST

IC23

ST93C46AM1

VCC=E2ROM5VGND=SGND

1 2

E2ROM5V


+5V

A

K

2

3 D1SB02-030

1 2

R12ERJ6GEYJ223V22K

1 2

R39ERJ6GEYJ103V10K

1 2

1 2

1 2

R1322K

R1422K

R1522K

1

2

1

2

1

2

R40ERJ6GEYJ103V

10K

R4110K

R4210K

59

16

15

14

E2_DO

E2_CS

E2_SK

E2_DI

P46/AN6

P63/*Prdy

P64/A0

P65/*CS

CPU

9 – 26

Vout CN-2

53254-0210

53254-0210

GND CN-1PTRTPS616

C

E

GND

+5V CN-1

VOUT CN-2

LED CN-3

GND CN-4

B4B-PH-K-S

GND

C

E

PTRPH110 RL

+5V

A

K

LEDTLN119

A

K

LEDTLN119

+5V

+5V CN-1

LED CN-2

53254-0210

53254-0210

9 – 27

[10] COMMUNICATION

1. General description

The system is designed to improve efficiency in servicing, allow for more precise customer account control. Thissystem also allows for the monitoring of machine’s performance by remote control of meter reading, remote diagnosis,and read/write of various adjustment values by the host computer using telephone lines. The communication unit systems are largely classified into two categories: system A and system B. In system A, copiercounts are based on the pulse signal outputted from the copier during every copy cycle. In system B, a wider range ofinformation can be controlled such as counter totalizing, troubles, jam, remote maintenance, and marketing data.

2. System A

[Fig. 1] Block diagram

In System A, the personal counter signal (count up pulse) is output from the copier, sensed and counted up. The datais written into the RAM which is backed up by a battery. Since in internal RTC (Real Time Clock) is provided, the countdata is transmitted (usually at night) through the telephone line to the host computer when the time set in the RAM isreached. System A is usually with a low cost copier and an existing telephone line at the customers’location. In System A,communication is one way, from the terminal to the host.

(1) Functions of System ASystem A provides the following functions:1 Meter reading by periodic transmission2 Sense switch of start and end time of servicing

ROM(1MB)

RAM(32KB)

RTC

PPC

SW

SW

CPU

NCU

LIN

TEL

AC/DC

Telephone Line

Telephone

Count input

Copierinterface

Communi-cationcontrolsection

Power control

AC adapter

10 – 1

3. System B

[Fig. 2] Block diagram

System B is designed for medium or high class copiers. Communication in System B is performed with a speciallyprovided telephone line. An existing telephone line can also be used, although communication is made only from theterminal in a similar manner to System A. When a special line is provided, the bi-directional communication is allowed,where either the host or the terminal can initiate communication. The communication unit processes and stores information sent from the copier every time a copy is completed or ajam or trouble occurs. The data is sent to the host computer when an access is made from the host computer. It is alsopossible to make an access to the host computer to transmit information by using trouble data transmission from thecopier as a trigger.

ROM(1MB)

RAM(32KB)

RTC

SW

SW

CPU

NCU

LIN

TEL

AC/DC

Telephone Line

Telephone

RS-232CCopierinterface

Communi-cationcontrolsection

Power control

AC adapterPPC

(1) Functions and applications of system B

Function UserServiceengineer

Dealer Subsidiary

1 Automatic billing (meter reading) F F

2 Automatic service call F F k

3 Jam history read F F k

4 Trouble history read F F k

5 Read/write of simulation data F F k

6 PC/modem set value change F F k

7Read/reset of department counter F

Key operator program data read/write F

8 Confirmation of start and end time of servicing F k

9 ROM version confirmation F F k

10 Check of the quantity of copy originals for each job

11 Check of use frequency of each copy mode

12 Supply parts stock control F F k

13 Machine status check F F F k

14 Service engineer control F k

15 Copy inhibition when PC/modem is not installed F k

16 Tag number (grade up No.) change F F k

: Not applicable F : Applicable k : Applicable if required

10 – 2

(2) Functions of system BAll the functions of system B are listed in the table below:

Function Data content

1 Automatic billing (meter reading)

C

ount

er b

y fu

nctio

n

Total

• The counter value of each data listed in the rightcolumn can be automatically read through thetelephone line, and also can be read by theperiodic transmission started by the terminal.

Maintenance

Duplex

Staple

ADF

Tray 1

Tray 2

Tray 3

Trouble

Jam in PPC body

Jam in RADF

C

ount

er b

y pa

per

size

User total (effective paper)

D

V c

ount

er

DV counter (Black)

2 Automatic service call

Sta

tus

data

At initializing after power ON or cancellation ofsimulation.• When a trouble occurs or in the case of

maintenance, a trouble code and the status dataimmediately before occurrence of the trouble orthe service code are automatically transmitted. Forthe trouble codes, refer to the Service Manual ofthe copier. For status data and service codes,refer to the column in the right.

During execution of simulation .

Trouble state

Jam state

Door open state

Warm up state

During copying

Wait state

Power OFF state

Ser

vice

cal

l

Maintenance

K

ey o

pera

tor

call

Toner empty

Waist toner full

Low toner

10 – 3


3 Jam history read

Ja

m p

ositi

on c

ode

Tray 1 Tray 2

• Data on sensor names and sensor positions,document size, paper size, and the paper feed unitwhen jams occurred can be read. In the case ofthe SD-2060, for example, each sensor positionfor the data in the column in the right can be read.

Tray 3 DUP

PPD1 PPD2

PPD3 MPFD

PSD POD1

POD2 DPID

DPPD REV

BYPASS/BYPAS PFD1

PFD2 PFD3

DPFD DSBD

OGFD SB

SPID SPOD

OGST EXT

4 Trouble history read

Sta

tus

data

At initializing when power ON or after cancellation ofsimulation• When a trouble occurs, the trouble code and the

status code just before occurrence of can be read.For the trouble codes, refer to the Service Manualof the copier. For the status data just before theoccurrence of the trouble, refer to the right column.

Simulation No. input wait state

During execution of simulation

Trouble state

Jam state

Door open state

Warm up state

During copying

Wait state

Power OFF state

5 Read/write of simulation data For the contents of data for simulation, refer to theService Manual of the copier.• Simulation data (set values, etc.) of each copier

can be read and simulation can be executed. Forthe contents of simulations, refer to the Servicemanual of the copier.

6 PC/modem set value change

PC

/Mod

em s

et v

alue

PC/Modem ID

• The PC/modem set values of the data listed in theright column can be changed.

PPC ID

Host 1 TEL #1 Host 3 TEL #1








10 – 4


7 Read/write of department counter key operation data

(1) Read/reset of department counter

• When controlling the built-in department counter with the copier, the counter data by department can beread

(2) Key operator program data read/writeRead/write of the following key operator program can be performed.

No.Key ope.

No.Program content READ WRITE Data Remark

1 22 Toner save mode setting F F 1: YES 2: NO

2 20Automatic exposure valueadjustment

F F AE exposure level: 1 ~ 5

3 26Margin shift reference valuesetting

F F Side 1: 1 ~ 6

F F Side 2: 1 ~ 6

4 42Selection of margin shiftdirection

F F 1: YES 2: NO

5 70Setting of paper autoselection mode

F F 1: YES 2: NO

6 74 Inhibition of use of ADF F F 1: YES 2: NO

7 77Inhibition of selection of traythe cover paper/mark paperinsertion mode

F F 1: YES 2: NO

8 78 Locking of paper feed tray F F 1: YES 2: NO

9 75 Inhibition of duplex copy F F 1: YES 2: NO

10 76 Inhibition of use of stapler F F 1: YES 2: NO

11 72Inhibition of the malt paperfeed at the Bypass tray inthe duplex mode

F F 1: YES 2: NO

12 73Inhibition of job programrewrite

F F1: YES 2: NO

13 71Inhibition of automaticselection of tray

F F1: YES 2: NO

14 46 Inhibition of operation F F 1: YES 2: NO

15 43 Erase width mode setting F F Print density: 1 ~ 3

16 25Copy quantity setting inputlimitation

F FMax. number of paperquantity setting

(1 ⇒ 999)

17 27 Erase width setting F FEDGE: 1 ~ 3CENTER: 1 ~ 3

(SEC ⇒ NO)

18 44Registration of mark paperinsertion position

F F 1: YES 2: NO

19 45Selection of messagedisplay time

F F Display time: 1 ~ 5

10 – 5


8 Confirmation of start and end time of servicing

S

ervi

ce s

tart

/end

cod

e

Service start• Start and end time of servicing can be confirmed

by performing simulation at start and end ofservicing.

Service end

9 ROM version confirmation

Con

trol

RO

M Master ROM

• ROM data version can be confirmed as shown inthe right column.

Slave ROM

Mirror ROM

Finisher ROM

RADF ROM

Dat

a R

OM

Data ROM 1 (English)

Data ROM 1 (Japanese)

Data ROM 1 (German)

Data ROM 1 (French)

F Check of the quantity of copy originals for each job

Job

cont

ent Copy quantity

• Job contents listed in the right column can bechecked.

Quantity of originals

(This fanction does not work in this model.)Department code

G Check of use frequency of each copy mode

Cop

y m

ode

Orig

inal

han

dlin

g un

its

OCD

uple

x m

ode S to S

• Copy mode data listed in the right column can bechecked.

S to D

D to S

(This fanction does not work in this model.) D to D

(R) ADF

Dup

lex

mod

e S to S

S to D

D to S

D to D

RDH

Dup

lex

mod

e S to S

S to D

D to S

D to D

CFF

Dup

lex

mod

e S to S

S to D

D to S

D to D

UDH

Dup

lex

mod

e S to S

S to D

D to S

D to D

10 – 6


P

aper

feed

uni

t

Manual paper feed

Cassette 1

Cassette 2

Cassette 3

Cassette 4

Cassette 5

Cassette 6

Intermediate tray

Tray 1

Tray 2

Tray 3

Tray 4

Tray 5

Tray 6

H

oriz

onta

l fee

d

O

rigin

al p

aper

siz

e

A3

B4

A4

B5

A5

12" (UK)

13" (SCA)

WLT

LG

LT

IV

EX

V

ertic

al fe

ed (

R)

O

rigin

al p

aper

siz

e

A3

B4

A4

B5

A5

12" (UK)

13" (SCA)

WLT

LG

LT

IV

EX

10 – 7


H

oriz

onta

l fee

d

C

opy

pape

r si

ze

A3

B4

A4

B5

A5

12" (UK)

13" (SCA)

WLT

LG

LT

IV

EX

P

aper

feed

(R

)

C

opy

pape

r si

ze

A3

B4

A4

B5

A5

12" (UK)

13" (SCA)

WLT

LG

LT

IV

EX

Mark paper insertionmode (OHP)

NO

YES

Cover paper insertionmode (OHP)

NO

YES

Mark paper insertionmode

NO

YES

Cover paper insertionmode

NO

YES

1 set 2 copies modeNO

YES

Binding margin mode

No setting

Front surface

Rear surface

Both surfaces

Frame erase modeNO

YES

Center frame erasemode

NO

YES

10 – 8


Interruption modeNO

YES

Sorter modeNo setting

Group

Sort

Staple modeNO

YES

OffsetNO

YES

H Supply parts stock control

Key

ope

. cal

l Toner empty

• Information on copy quantity, paper size, tonerempty state are sent from the copier to checksupply parts history information every time whencopying is completed.

Copy quantity

Quantity of originals

Department code

Cop

y m

ode

Orig

inal

han

dlin

g un

its

OC

Dup

lex

mod

e S to S

S to D

D to S

D to D

(R) ADF

Dup

lex

mod

e S to S

S to D

D to S

D to D

Pap

er fe

ed u

nit

Manual paper feed

Cassette 1

Cassette 2

Cassette 3

Cassette 4

Cassette 5

Cassette 6

Duplex tray

Tray 1

Tray 2

Tray 3

Tray 4

Tray 5

Tray 6

10 – 9


H

oriz

onta

l fee

d

O

rigin

al p

aper

siz

e

A3

B4

A4

B5

A5

12" (UK)

13" (SCA)

WLT

LG

LT

IV

EX

Ver

tical

feed

(R

)

Orig

inal

pap

er s

ize

A3

B4

A4

B5

A5

12" (UK)

13" (SCA)

WLT

LG

LT

IV

EX

Hor

izon

tal f

eed

Cop

y pa

per

size

A3

B4

A4

B5

A5

12" (UK)

13" (SCA)

WLT

LG

LT

IV

EX

10 – 10


P

aper

feed

(R

)

C

opy

pape

r si

ze

A3

B4

A4

B5

A5

12" (UK)

13" (SCA)

WLT

LG

LT

IV

EX

Mark paper insertionmode (OHP)

NO

YES

Cover paper insertionmode (OHP)

NO

YES

Mark paper insertionmode

NO

YES

Cover paper insertionmode

NO

YES

1 set 2 copies modeNO

YES

Binding margin mode

No setting

Front surface

Rear surface

Both surfaces

Frame erase modeNO

YES

Center frame erasemode

NO

YES

Interruption modeNO

YES

Sorter modeNo setting

Group

Sort

Staple modeNO

YES

10 – 11


I Machine status check

Sta

tus

data

At initializing when power ON or after cancellation ofsimulation• Machine status data listed in the right column can

be checked. Discharge the invalid document state

During execution of simulation

Trouble state

Jam state

Door open state

Warm up state

Copy state

Wait state

Power OFF state

J Service engineer control• Same as 8 Confirmation of start/end time of servicing.• Same as 8 Confirmation of Start/end time of

servicing.

K Copy inhibition when PC/modem is not installed

C

opy

enab

le/ C

opy

inhi

bitio

n

Copy stop• As shown in the right, selection can be made

between copy inhibition and copy enable.

• Copy inhibition (PF trouble) mode can becancelled with simulation of the copier.

• When PC/modem is not installed or in case ofcommunication trouble between PC/modem andthe copier, selection between copy inhibition andcopy enable can be made with the copiersimulation.

Copy stop cancel

L Tag number (grade up No.) change For the contents of simulations, refer to the ServiceManual of the copier. • Tag number stored in the copier can be read by

simulation of the copier. Write of tag number canalso be made.

10 – 12

Documents

Sharp Sd2060 Copier Service Manual