TopPage SERVICE MANUAL - Diagramas dediagramas.diagramasde.com/otros/MX-LCX4_SM.pdf · SERVICE MANUAL Parts marked with " " are important for maintaining the safety of the set. Be

SERVICE MANUAL

Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts withspecified ones for maintaining the safety and performance of the set.

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

[1] SPECIFICATIONS . . . . . . . . . . . . . 1-1

[2] MAINTENANCE1. Maintenance table . . . . . . . . . . 2-1

[3] REPLACEMENT AND ADJUSTMENT1. Front door and covers . . . . . . . 3-12. Inner cover, paper feed unit . . . 3-13. Paper feed roller . . . . . . . . . . . . 3-14. LCT motors. . . . . . . . . . . . . . . . 3-25. Image position sensor board,

exit sensor . . . . . . . . . . . . . . . . 3-46. Paper height sensors,

paper size sensors . . . . . . . . . . 3-47. Main control board . . . . . . . . . . 3-48. Side registration adjustment . . . 3-59. Dehumidifier heater

installing procedures (0PQC4150431//) . . . . . . . . . . . 3-5

[4] DETAILED DESCRIPTIONS1. Paper feed . . . . . . . . . . . . . . . . 4-12. Paper lift . . . . . . . . . . . . . . . . . . 4-23. Paper size detection. . . . . . . . . 4-24. Remaining paper detectiion . . . 4-35. Paper end detection . . . . . . . . . 4-3

[5] OVERALL MECHANICAL INFORMATION1. Mechanical component

layout . . . . . . . . . . . . . . . . . . . . 5-12. Drive layout . . . . . . . . . . . . . . . 5-13. Electrical components . . . . . . . 5-24. A4/LT LCT MX-LCX4 layout

(with bypass) . . . . . . . . . . . . . . 5-35. Electrical component

summary . . . . . . . . . . . . . . . . . 5-3

TopPage

CONTENTS

CODE: 00ZMXLCX4/S1E

DIGITAL MULTIFUNCTIONAL SYSTEM OPTIONLARGE CAPACITY THREE TRAYS

MX-LCX4MODEL

MX-LCX4 Service Manual [1] SPECIFICATIONS

Form Large Capacity Trays (3 Trays)Transport speed 85 – 110 sheets/minute to be supported Transport standard Center alignmentPaper size A4, A5R, B5, 8.5 x 11, 5.5 x 8.5R, 9 x 12 (A4W)Paper size label AvailablePaper size setting Upper tray: User setting (Size setting by guide at Interior side of tray)

Middle tray: User setting (Size setting by guide at Interior side of tray)Lower tray: Service setting (Size setting by operation panel)

Paper size setting for shipment Inch: 8.5 x 11AB: A4

Feedable paper size/weight Upper tray: 52 – 205 g/m2 / 16 lbs Bond – 110 lbs IndexMiddle tray: 52 – 205 g/m2 / 16 lbs Bond – 110 lbs IndexLower tray: 52 – 163 g/m2 / 16 lbs Bond – 90 lbs Index

Paper type Plain paper, Heavy paper, Recycled paper, Thin paper, Pre-printed paper, letter head, Punched paper, Transparency paper, Colored paper, Tab paper (Not available for the Saddle tray), Label paper (Available only for the Offset tray)

Paper capacity Standard PaperUpper tray / Middle tray: 1000 sheetsLower tray: 2550 sheets (80 g/m2)

Detection of remaining paper Available level detection (5 levels)Upper tray / Middle tray: 100%, 75%, 50%, 25%, EmptyLower tray: 100%, 75%, 50%, 25%, Empty* Detection error 3%

Paper supply Paper supply from the upper section by the front loading methodTray rising/falling time Rising Upper tray / Middle tray: 10 seconds or less

Lower tray : 15 seconds or lessTime required from tray insertion to empty detection without paper

Falling Self-weight fallingReliability MCBJ in compliance with the main unit

MCBFLife 5 years or 24,000KPower consumption 150W or lessPower source DC24V (Supplied by the main unit)Dimensions W526 x D728 x H980 mmOccupied dimension 540 x 730 mmWeight Approximately 95 kgInstallation/Maintenance By service personHeater AC 18W x 2 36W (Service parts: 0PQC4150431//)

MX-LCX4 SPECIFICATIONS 1 – 1

Paper Size/Type/WeightLCT(A4)

Upper Tray Middle Tray Lower TrayMinimum paper weight 52 g/m2

(14 lbs bond)52 g/m2

(14 lbs bond)52 g/m2

(14 lbs bond)Maximum paper weight 205 g/m2

(40 lbs bond)(110 lbs index)(65 lbs cover)

205 g/m2

(40 lbs bond)(110 lbs index)(65 lbs cover)

163 g/m2

(90 lbs Index)

Paper type Thin paper Yes(Even 52 g/m2

is possible)

Yes(Even 52 g/m2

is possible)

Yes(Even 52 g/m2

is possible)Plain paper Yes Yes YesRecycled paper Yes Yes YesColored paper Yes Yes YesLetter head Yes Yes YesPre-printed paper Yes Yes YesPre-punched paper Yes Yes YesHeavy paper 1 (106 – 128 g/m2) Yes Yes YesHeavy paper 2 (129 – 176 g/m2) Yes Yes YesHeavy paper 3 (177 – 205 g/m2) Yes Yes NoHeavy paper 4 (206 – 300 g/m2) No No NoTab paper Yes Yes NoTransparency paper Yes Yes YesLabel paper No Yes No

Paper size 12" x 18" (A3W) 305 x 457 — — —Ledger (11" x 17") 279 x 432 — — —Ledger (11" x 17") Z folding 279 x 216 — — —Legal (8.5" x 14") 216 x 356 — — —Legal (8.5" x 14") Z folding 216 x 178 — — —Mexican Legal (8.5" x 13.4") 216 x 340 — — —Foolscap (8.5" x 13") 216 x 330 — — —Letter (8.5" x 11") 279 x 216 Yes Yes YesLetter R (8.5" x 11" R) 216 x 279 — — —Letter R (8.5" x 11" R) Z folding 216 x 140 — — —Invoice (5.5" x 8.5") 216 x 140 — — —Invoice R (5.5" x 8.5" R) 140 x 216 Yes Yes YesExective R (7.25" x 10.5") 184 x 266 — — —9 x 12 (A4W) 305 x 229 Yes Yes YesA3 297 x 420 — — —A3 Z folding 297 x 210 — — —B4 257 x 364 — — —B4 Z folding 257 x 182 — — —A4 297 x 210 Yes Yes YesA4-R 210 x 297 — — —A4-R Z folding 210 x 148 — — —B5 257 x 182 Yes Yes YesB5-R 182 x 257 — — —A5 210 x 148 — — —A5-R 148 x 210 Yes Yes YesSRA3 320 x 450 mm — — —SRA4 320 x 225 mm — — —

318 x 234.75 mm — — —312.5 x 220 mm — — —318 x 469.5 mm — — —312.5 x 440 mm — — —

8K 270 x 390 — — —16K 270 x 195 — — —16K-R 195 x 270 — — —Postcard 100 x 148 — — —Special – Custom sizeCustom Range

No No Nomin Main — — —max Main — — —min Sub — — —max Sub — — —

Special – Size uncertain — — —

MX-LCX4 SPECIFICATIONS 1 – 2

MX-LCX4 MAINTENANCE 2 – 1

MX-LCX4 Service Manual [2] MAINTENANCE

1. Maintenance table: Check (Clean, replace or adjust as needed) : Clean : Replace : Adjust ✩: Lubricate : Shift position

[Note 1] Replacement reference: Replace according to each paper feed counter value. MX-LCX4 Paper feed tray 1, 2, 3: 200K or 1 year Torque limiter: 800K(NOTE) Paper feed section roller lifeEach roller life is as shown on the left. When, therefore, a certain paper feed unit is excessively used, its life may be expired before the mainte-nance timing.Actually, however, different sizes of paper are used with different paper feed trays, and it is quite rare that the roller replacement must be madebefore the maintenance timing.If a certain size of paper must be heavily used, set different paper feed trays for that paper size. This information must be explained to the user.When servicing, check the use frequency of each paper feed tray, and replace the rollers as needed.When cleaning the roller, it is advisable to use a cloth with a small quantity of water.The friction level is smaller in the order of the paper pick-up roller, the paper feed roller, and the separation roller.

No. Parts name Occasionally When calling 500K 1000K 1500K 2000K 2500K 3000K Life judgement

(Reference)Tool, oil, chemicals Procedure

Treatment after procedure1 Transport

guide plateWhen there is dirt, wipe with dry cloth.

2 Grip roller drive/follower

When there is dirt, wipe with cloth and water.

3 Pick-up roller (1 – 3 step)

[Note 1] Roller life 200K When there is dirt, wipe with cloth and water.

4 Feed roller (1 - 3 step)


5 Separate roller (1 – 3 step)


6 Torque limiter7 Sensor8 Gear UKOG-0307FCZZ

MX-LCX4 Service Manual [3] REPLACEMENT AND

ADJUSTMENT

1. Front door and covers

[A] Top cover (screw x 4).[B] Front door (stopper x 1).

NOTE: While lifting the top cover, remove the snap ring and frontdoor.

[C] Rear cover (screw x 6).[D] Right cover (screw x 6).[E] Paper slot cover (screw x 2).

2. Inner cover, paper feed unit

• Open the front door.• Remove right cover (see 1.)Remove:[A] Pull out tray and remove it (screw x 4)[B] Knobs (x 3) (screw x 1 each)[C] Upper inner cover (screw x 2)[D] Knob (screw x 1)[E] Lower inner cover (screw x 1)[F] Paper feed unit (connector x 1, screw x 2)

3. Paper feed roller

Remove:• Remove the right cover (see 1.)• Remove the paper trays. (see 2.)[A] Pick-up roller (stopper x 1).[B] Feed roller (stopper x 1).[C] Separation roller (stopper x 1).

NOTE: 1) The LCT pick-up and separation rollers are the sameas pick-up and separation rollers of the main machine.These rollers are interchangeable.

2) The feed rollers of the LCT and main machine are dif-ferent because they are designed to rotate in oppositedirections. The feed rollers of the LCT and mainmachine are not interchangeable.

3) Never touch the surface of the rollers with bare hands.• Clear the PM counters for the new rollers (see Section "2. Pre-

ventive Maintenance).

[C]

[B]

[D]

[E] [A]

[A]

[B]

[C]

[D][E]

[F]

[A]

[B]

[C]

MX-LCX4 REPLACEMENT AND ADJUSTMENT 3 – 1

4. LCT motorsA. Paper feed, grip motors

Each paper feed unit has a paper feed motor (1) and a grip motor(2). The removal procedure is the same for each feed tray.Remove:• Rear cover (see 1.)[A] Motor unit (screw x 4, connector x 2)[B] Springs (x 2). First, loosen the screws (x 2) (3).[C] Paper feed motor (screw x 2)[D] Grip motor (screw x 2)Reinstallation• Attach the tension spring, then tighten the screws (3) to tighten

the belts.

B. 6th lift motor

Remove:• Rear cover (see 1.)[A] 6th lift motor (screw x 2, connector x 1)

C. 4th transport motor

Remove:• Rear cover. (see 1.)[A] 4th Transport motor unit (screw x 5, connector x 1).[B] Spring (x 1). First, loosen screw (1) (screw x 1).[C] 4th transport motor (screw x 2, Timing belt x 1)Reinstallation• Be sure that the tension spring is connected, then tighten the

screw (1).

[A]

(1)

(2)

[C]

[D]

(3)[B]

[A]

[A]

[B]

[C](1)


D. 5th transport motor

Remove:• Rear cover. (see 1.)[A] Motor unit (screw x 4, connector x 1).[B] Spring (x 1). First, loosen screw (1) (screw x 1).[C] 5th Transport motor (screw x 2, Timing belt x 1)Reinstallation• Be sure that the tension spring is connected, then tighten the

screw (1).

E. LCT exit motor

Remove:• Remove the rear cover. (see 1.)[A] Motor unit (screw x 6, connector x 1).[B] Spring (x 1). First, loosen screw (1) (screw x 1).[C] LCT exit motor (screw x 2, Timing belt x 1)Reinstallation• Be sure that the tension spring is connected, then tighten the

screw (1).

F. 6th transport motor

Remove:• Rear cover. (see 1.)[A] Motor unit (screw x 6, connector x 1).[B] Spring (x1). First, loosen screw (1) (screw x 1).[C] LCT exit motor (screw x 2, Timing belt x 1)Reinstallation• Be sure that the tension spring is connected, then tighten the

screw (1).

[A]

[B]

[C](1)

[A]

[B]

[C]

(1)

[A]

[B]

[C]

(1)


G. 4th, 5th lift motors

Remove:• Rear cover. (see 1.)[A] Main control board bracket (screw x 5, connector x All)[B] 4th lift motor (screw x 3, connector x 1)[C] 5th lift motor (screw x 3, connector x 1)

5. Image position sensor board, exit sensor

A. Image position sensorDisconnect the LCT from the copier.[A] Harness cover (screw x 1, clamp x 1)[B] Image position sensor unit (screw x 1, clamp x 1, connector x 1)[C] Stopper (screw x 1)[D] Image position sensor• After replacing the image position sensor, do the procedure for

image position sensor adjustment. (see 9.)

B. Image position sensor board[E] Image position sensor board (screw x 2, clamp x 1, connector x2)

C. Exit sensor[F] Exit sensor unit (screw x 1, connector x 1, clamp x 1)[G] Exit sensor

6. Paper height sensors, paper size sensors

Remove:• Rear cover. (see 1.)• Right cover. (see 1.)[A] Paper height sensor unit (clamp x 2, screw x 1, connector x 4).[B] Paper height sensors (Hooks x 4 each)[C] Paper size sensors (connector x 1 each)

7. Main control board

Remove:• Rear cover. (see 1.)[A] Main control board (screw x 6, Standoffs x 2, connector x All)

[A]

[B]

[C]

[A]

[B]

[C]

[D]

[E]

[G] [F]

[A]

[B]

[A][B]

[C]

4th/5th Tray

6th Tray

[A]


8. Side registration adjustment

Normally the side registration of the image can be adjusted in theSP mode.If the punch hole positions are not aligned from a particular feedstation, however, you can manually adjust the side registration bychanging the tray cover position for that tray, and then adjust theside registration of the image.1) Pull out the tray.2) Change the screw positions [A] at both the right and left sides

as shown.

NOTE: Adjustment range: 0 ± 2.0 mm adjustment step: 1.0 mm/step

9. Dehumidifier heater installing procedures (0PQC4150431//)

A. Component parts

B. Installing procedures1) Remove the lower-stage cassette (4 screws).

2) Remove the rear cabinet. (5 screws)

Remove the earth plate. (2 screws)

[A]

Heater cover

Interface harness

(with heater line)

Heater

(x 2)

M4 screw (x 7)

M4 washer screw (x 1)


3) Remove the interface harness plate (2 screws), and removethe harness.

4) Install a new interface harness, and insert the connector intothe PWB.Fix the earth wire of the heater harness with the accessorywasher screw.

5) Fix the two heaters with two screws for each of them, and fixthe harness with the snap band.

6) Install the heater cover. (3 screws)

Install the rear cabinet and fix it with the screw.

Screw (x 2)

Interface harness

Interface harness

Heater harness

section

Snap band fixing

Earth fixing screw

Snap band fixing

(3 positions)


MX-LCX4 Service Manual [4] DETAILED DESCRIPTIONS

1. Paper feedA. Paper feed rollers

This LCT has three paper tray feed stations:The 4th and 5th tray each hold 1,000 sheets of paper. The 6th trayholds 2,550 sheets of paper. Total: 4,550 sheetsEach tray contains four rollers:[A] Pick-up roller[B] Paper feed roller[C] Separation roller[D] Grip roller

NOTE: The pick-up roller, paper feed roller, and separation rollerare a standard FRR paper feed system.

B. Paper feed motors

Two stepper motors control the paper feed drive:[A] Paper feed motor [B] Grip motorThe paper feed motor drives the pick-up roller [C] and the paperfeed roller [D].The grip motor drives the grip roller [E] that feeds the paper out ofthe tray, and the separation roller [F].

C. Pick-up and feed

When a paper feed station is not selected:• Separation roller solenoid [A] is de-activated• Separation roller [B] turns freely.When the paper feed station is selected for a job:• Paper feed motor [C] and grip motor [D] turn on.When the feed motor [C] turns on, it drives the feed roller [E]. It alsodrives the pick-up roller [F] because the pick-up roller is linked tothe feed roller by an idle gear.When the separation solenoid [A] turns on, the separation roller [B]contacts the paper feed roller [E] and turns with the feed roller,unless more than one sheet of paper is fed. The three trays of theLCT unit use the standard FRR mechanism.When the paper feed motor turns on, the pick-up solenoid turns onand the pick-up roller [F] lowers until it contacts the top sheet of thepaper stack and then sends it to the paper feed and separation roll-ers.When the paper feed sensor detects the leading edge of the paper,the paper feed motor switches off, the pick-up roller lifts, and thegrip rollers [G] feed the paper out of the tray.

[A]

[B]

[C]

[D]

[A]

[B]

[C]

[D][E]

[F]

[C]

[D]

[A]

[B]

[E][F]

[G]

MX-LCX4 DETAILED DESCRIPTIONS 4 – 1

2. Paper liftA. Tray detectionWhen a tray is set in the machine, the tray detection method useddepends on the tray:• The upper tray and middle tray are detected when any one of the

paper size switch signals is low.• The lower tray is detected when the switch 1 signal of the paper

size switch is low.

B. Lift mechanismWhen the machine detects that the paper tray is set in the machine,the tray lift motor [A] rotates and the coupling gear [B] on the tray liftmotor engages the pin [C] of the lift drive shaft [D]. The tray drivebelts [E] are connected to the tray bottom plate [F] and are drivenby the tray lift motor via the lift drive shaft [D] and tray drive pulleys[G]. When the lift motor turns counterclockwise, the tray bottomplate [F] moves up. The tray goes up until the top of the paper stackpushes up the pick-up roller and the lift sensor in the feed unit isde-activated.When the actuator [H] on the rear end of the bottom plate activatesthe paper height sensors [I], the remaining paper capacity isdetected. (see 4.)When pulling out the tray, the coupling gear [B] separates from thepin [C], so that the tray bottom plate moves downward. In the bot-tom tray, the damper [J] lets the tray bottom plate drop slowly.

C. Lift sensor

When the lift motor turns on, the pick-up solenoid [A] activates tolower the pick-up roller [B]. When the top sheet of paper reachesthe proper paper feed level, the paper pushes up the pick-up rollerand the actuator [C] on the pick-up roller supporter [D] de-activatesthe lift sensor [E] to stop the lift motor. After several paper feeds, the paper level gradually lowers, thenthe lift sensor is activated and the lift motor turns on again until thelift sensor is de-activated again.

3. Paper size detection

A. Top tray (tray 4) and middle tray (tray 5)For the top and middle trays, the paper size switch [A] detects thepaper size. The paper size switch contains three microswitches.The paper size switch is actuated by an actuator plate [B] at therear of the tray. Each paper size has its own unique combination asshown in the table and the CPU determines the paper size by thecombination.

B. Bottom tray (tray 6)The bottom tray has the same switch as the top and middle trays.However, it is only used for detecting when the tray is pushed in.For the bottom tray, the paper size must be selected in the SP5019-007:

[F]

[A]

[E]

[J]

[D]

[E]

[C]

[B]

[G]

[H]

[I]

A4-LEF

B5-LEF

A5-LEF

A5-SEF

LT-LEF

HLT-LEF

HTL-SEF

SW1 0 1 0 0 0 1 1SW2 1 0 1 0 0 0 1SW3 1 1 0 1 0 0 0

1: HI 0: LOW

[A]

[E]

[D] [C]

[B]

[A]

[B] 21 3


4. Remaining paper detectiion

The amount of paper remaining in the tray is detected by the threepaper height photo-interrupter sensors on the left rail as the bottomplate rises. Five states, determined by the position of the actuatorare possible.1) With the actuator [A] below paper height sensor 1 [B], no sen-

sor is actuated and the display indicates 100%.2) When the actuator passes paper height sensor 1 [B] , the dis-

play indicates 75% of the paper supply remaining.3) When the actuator passes paper height sensor 2 [C], the dis-

play indicates 50% of the paper supply remaining.4) When the actuator passes paper height sensor 3 [D], the dis-

play indicates 25% of the paper supply remaining.

NOTE: When the actuator enters the gap of the near end sensor[E], the machine signals near end.

Finally, when the last sheet feeds, the paper end sensor signalsthat the tray is empty. (see 5.)

5. Paper end detection

The paper end sensor [A] detects the top sheet of the paper in thetray by monitoring the reflected light. When the paper tray runs outof paper, the paper end sensor does not receive the reflected lightdue to the cutout [B]. Then, the tray lift motor rotates backwards 2seconds to drop the tray bottom plate.

[A]

[B]

[C]

[D]

[E]

[A]

[B]


MX-LCX4 Service Manual [5] OVERALL MECHANICAL

INFORMATION

1. Mechanical component layout

2. Drive layout

1 4th Paper Feed Unit2 5th Paper Feed Unit 3 6th Paper Feed Unit 4 4th Tray Drive Belt5 5th Tray Drive Belt6 6th Tray Drive Belt7 Lower Transport Rollers8 Horizontal Transport Roller9 LCT Exit roller10 Upper Transport Rollers11 Feed Slot (from Bypass Tray)

(1)

(2)

(3)

4

5

67

8

9

10

11

M1 4th Grip Motor M2 4th Lift MotorM3 4th Paper Feed Motor M4 4th Transport Motor M5 5th Grip MotorM6 5th Lift Motor M7 5th Paper Feed MotorM8 5th Transport MotorM9 6th Grip MotorM10 6th Lift Motor M11 6th Paper Feed MotorM12 6th Transport MotorM13 LCT Exit Motor

M8

M3

M1

M4

M2

M6

M10

M11

M9

M12

M7

M5

M13

MX-LCX4 OVERALL MECHANICAL INFORMATION 5 – 1

3. Electrical components

NOTE: Items S34, S35, S36, SOL5 and SOL6 are duplicated inthe 4th and 5th units.

S50

S33

S15 S17 S7

S12

S6

S5

S4S24

S29

S23

S22

S21

S45

S40

S39

S38

S37

S49

SW1

SOL6S35

S36

S34

SOL5

S4 4th Paper Height Sensor 1 S5 4th Paper Height Sensor 2S6 4th Paper Height Sensor 3S7 4th Paper Height Sensor 4S12 4th Paper Size SensorsS15 4th Relay SensorS17 4th Transport SensorS21 5th Paper Height Sensor 1 S22 5th Paper Height Sensor 2 S23 5th Paper Height Sensor 3 S24 5th Paper Height Sensor 4 S29 5th Paper Size Sensors S33 5th Transport Sensor S34 6th Lift Sensor S35 6th Paper End Sensor S36 6th Paper Feed Sensor S37 6th Paper Height Sensor 1 S38 6th Paper Height Sensor 2 S39 6th Paper Height Sensor 3 S40 6th Paper Height Sensor 4 S45 6th Paper Size Sensors S49 6th Transport Sensor S50 Exit Sensor

SOL5 6th Pick-up Solenoid SOL6 6th Separation Solenoid SW1 Door Safety Switch

1 Main Control Board2 Anti-Condensation Heaters (Options)

M1 4th Grip Motor M2 4th Lift MotorM3 4th Paper Feed MotorM4 4th Transport Motor M5 5th Grip MotorM6 5th Lift MotorM7 5th Paper Feed MotorM8 5th Transport MotorM9 6th Grip Motor M10 6th Lift Motor M11 6th Paper Feed MotorM12 6th Transport Motor M13 LCT Exit Motor

M8M4

M1 M3

M5

M7

M2

1

M6

M11

M10

2 (Option:

0PQC4150431//)

M9

M12

M13


4. A4/LT LCT MX-LCX4 layout (with bypass)

5. Electrical component summary

M1 4th Grip MotorM1 Paper Feed Motor Bypass (MX-MFX2) M3 4th Paper Feed MotorM3 Transport Motor Bypass (MX-MFX2)M4 4th Transport MotorM4 Grip Motor Bypass (MX-MFX2) M5 5th Grip Motor M7 5th Paper Feed Motor M8 5th Transport Motor M9 6th Grip Motor M11 6th Paper Feed Motor M12 6th Transport Motor M13 LCT Exit Motor S3 4th Paper Feed SensorS4 Paper Feed Sensor Bypass (MX-MFX2) S8 Transport Sensor Bypass (MX-MFX2)S15 4th Relay Sensor S17 4th Transport SensorS20 5th Paper Feed Sensor S33 5th Transport Sensor S36 6th Paper Feed Sensor S49 6th Transport Sensor S50 LCT Exit Sensor

MotorsNo.

(Signal) Name Description

M1 (L1REVM)

4th Grip Motor Drives the separation roller and the grip roller of the 4th tray.

M2 (L1PRM)

4th Lift Motor Drives the bottom plate of the 4th tray up and down.

M3 (L1PUM)

4th Paper Feed Motor

Drives the pick-roller and feed roller that picks up each sheet and starts to feed it out of the 4th tray.

M4 (L1PFM)

4th Transport Motor

Drives the rollers in the vertical feed path that feed the paper from the 4th tray to the LCT exit motor.

M5 (L2REVM)


M6 (L2PRM)

5th Lift Motor Drives the bottom plate of the 5th tray up and down.

M7 (L2PUM)



M8 (L2PFM)

5th Transport Motor

Drives the transport rollers in the vertical feed path that feed the paper from the 4th tray and the 5th tray to the LCT exit motor.

M9 (L3REVM)


Tray 4

Tray 5

Tray 6

Tray 7

(MX-MFX2)

M4

M7

S20

M8

S33

M11

S36

M1

S4

M4

S8

M3

M3

S3

M1

S17

M9

S49

M12

M13

S50

M5

S15

M10 (L3PRM)

6th Lift Motor Drives the 5th tray up and down.

M11 (L3PUM)



M12 (L3PFM)

6th Transport Motor

Drives the rollers in the vertical feed path that feed the paper from the 6th tray to the LCT exit motor.

M13 (PEM)

LCT Exit Motor Feeds the paper out the LCT and into the entrance of the copier.

PCBsNo. Name Description

PCB1 Main Control Board

Controls the operation of all motors and sensors in the LCT unit.

SensorsNo.


S1 (L1ULS)

4th Lift Sensor Detects when the paper in the 4th tray is at the correct height for paper feed and switches the 4th lift motor off.

S2 (L1PES)

4th Paper End Sensor

Detects when the last sheet feeds from the 4th tray.

S3 (L1PFS)

4th Paper Feed Sensor

Detects the paper when it arrives at the 4th paper feed roller and checks for misfeeds.

S4 (L1PVS1)

4th Paper Height Sensor 1

4th from the bottom of the 4th tray, detects stack height: 100%

S5 (L1PVS2)



S6 (L1PVS3)



S7 (L1PVS4)


4th from the bottom of the 4th tray, detects stack height: 25% and signals near-end.

S12 (L1SIZ1)

4th Paper Size Sensor 1

1 of a set of 3 sensors that detect the width of the paper in the 4th tray.

S13 (L1SIZ2)



S14 (L1SIZ3)



S15 (L1IDS)

4th Relay Sensor

Detects the leading and trailing edges of the paper in the paper path near the bottom of the 4th tray. Checks the timing of the feed and signals a jam if the paper is late or lags at this location.

S17 (L1TS)

4th Transport Sensor

Detects jams in the paper path where the transport motor feeds the paper from the 4th tray.

S18 (L2ULS)


S19 (L2PES)



S20 (L2PFS)



S21 (L2PVS1)



S22 (L2PVS2)



S23 (L2PVS3)



S24 (L2PVS4)



S29 (L2SIZ1)



S30 (L2SIZ2)



S31 (L2SIZ3)



S33 (L2TS)



MotorsNo.



A. Block diagram

S34 (L3ULS)


S35 (L3PES)



S36 (L3PFS)



S37 (L3PVS1)



S38 (L3PVS2)



S39 (L3PVS3)



S40 (L3PVS4)



S45 (L3SIZ1)



S46 (L3SIZ2)



S47 (L3SIZ3)



S49 (L3TS)



S50 (LEXIT)

LCT Exit Sensor

Detects jams at the exit of the LCT unit.

SensorsNo.

(Signal) Name DescriptionSolenoids

No. (Signal) Name Description

SOL1 (L1PUS)

4th Pick-up Solenoid

Engages/disengages rotation of the pick-up roller in the 4th tray.

SOL2 (L1REVS)

4th Separation Solenoid

Controls up-down movement of the separation roller in the 4th tray.

SOL3 (L2PUS)



SOL4 (L2REVS)

5th Separation SOL


SOL5 (L3PUS)



SOL6 (L3REVS)

6th Separation Solenoid


SwitchesNo.


SW1 (LILSW)

Door Safety Switch

An interlock safety switch that detects when the front door is opened and closed.

OtherNo. Name Description

H1, H2 Anti-Condensation Heaters

Evaporates moisture around the trays in the LCT (230V 18W). This is an option

Host

Equipment

DC24V

SIGNAL

I/F PWB

D/D

CP650

DC24V

DC5V

DC3.3V

SOL6

SOL3

SOL5

SOL2

SOL4

SOL1

STM10

STM9

STM8

STM7

STM6

Reverse Motor

For 1st TraySTM5

STM3

M3

M2

M1

FU650

D/D

I/F PWB

STM2

M1

SOL1

STM1

SIGNAL

SIGNAL LINE

DC POWER LINE

Paper Rise Motor

For 1st Tray

Pick-Up Motor

For 1st Tray

Reverse Motor

For 2nd Tray

Paper Rise Motor

For 2nd Tray

Pick-Up Motor

For 2nd Tray

Reverse Motor

For 3rd Tray

Paper Rise Motor

For 3rd Tray

Pick-Up Motor

For 3rd Tray

Reverse Solenoid

For 1st Tray

Pick-Up Solenoid

For 1st Tray

Reverse Solenoid

For 2nd Tray

Pick-Up Solenoid

For 2nd Tray

Reverse Solenoid

For 3rd Tray

Pick-Up Solenoid

For 3rd Tray

Pick-Up Solenoid

Paper Rise Motor

Reverse Motor

Pick-Up Motor

Feed Motor

CP100DC5V

A4 LCT Multi Bypass Tray

Paper End Sensor

Length Sensor

Paper Volume Sensor x 2

Upper Limit Sensor

Lower Limit Sensor

Paper Feed Sensor

Exit Sensor

Paper Feed Sensor x 3

Paper End Sensor x 3

Upper Limit Sensor x 3

Paper Volume Sensor

For 1st Tray x 4

Paper Volume Sensor

For 2nd Tray x 4

Paper Volume Sensor

For 3rd Tray x 4

Transport Sensor x 3

Intermediate Sensor

For 1st Tray

Connecting Unit Sensor

Option

Heater

STM4

STM3

STM2

Exit MotorSTM1

Interlock SW

SW1

Feed Motor

For 1st Tray

Feed Motor

For 2nd

Tray

Feed Motor

For 3rd Tray

AC POWER LINE

14.7456MHz±1.875%

CP200

CP201

CP202

AC208V - AC240V

or AC85V - AC115V


B. Actual wiring chart

CN

M

CN

M

CN

M

JCN

CN

SOL SOL

CN CN CN

JCN

CN

SOL SOL

CN CN CN

CN

M

JCN

CN

SOL

JCN

CN

SOL

CN CN CN

CN110(MOLEX 3.5) CN111(Mi II) CN112(Mi II)

CN115CN114

CN150 MOLEX(W) CN130 (MI II)

CN132(Mi II)

CN101

CN131 (Mi Red)

CN135 (Mi II)

CN

CN

JCN

CN

CN

JCN

CN

CN

JCN

CN113

CN

M

CN

M

CN151 (MOLEX(W)

CN

M

CN

M

CN139 (Mi II)

CN CN

CN CN CN CN CN CN CN

CN160 (miniMi II)

JCN

CN

M

JCN

CN

M

CN161 (miniMi II)

CN

Drawer CN (39P)

Drawer CN (39P)

JCN

JCN

CN CN

JCNJCN

CN CN CN

JCN JCN JCN

CN CN

CN CN CN

1. A3LCT only

2. Because it is common in A3LCT/A4LCT but the using component is different, the connection, too, is different.

A4LCT:C4155351

A3LCT:C4185351

A4LCT: B8325300

A3LCT: B8345300

A4LCT: B8325312

A3LCT: B8345308

A4LCT: C4155350

A3LCT: C4185350

A4LCT/A3LCT

:B8325311

A4LCT/A3LCT

:B8325311

A4LCT/A3LCT

:B8325311

A4LCT: B8325312

A3LCT: B8345308

A4LCT/A3LCT

:B8325311

A4LCT: B8325300

A3LCT: B8345300

A4LCT: B8325301

A3LCT: B8345320

A4LCT: B8325302

A3LCT: B8345322

A4LCT: B8325330

A3LCT: B8345320

A4LCT: B8325307

A3LCT: B8345324

A4LCT: B8325313

A3LCT: B8345305

A4LCT

5T transport sensor

interface harness provided

B8325306

A4LCT: C4155354

A3LCT: C4185354

A4LCT: B8325318

A3LCT: B8345323

A4LCT: B8325318

A3LCT: B8345322

A4LCT: B8325308

A3LCT: B8345302

A3LCT: B8345330

B8345334(In the tray)

3. : A4LCT only. A4LCT doesn't use drawer connector.

: Low active

: High active

Dotted line : Pulse

: Signal flow

CN900 CN901

FG

N

L(200V)

L(100V)

CN800

CN

N

L(200V)

L(100V)

12

5

3

4

When 200V (standard)

A4LCT: C4155355

A3LCT: C4185355

CN

JCN

CN

When 100V

A4LCT: C4155356

A3LCT: C4185356

A4L

: C

1

3

2

1

3

2

12 pin

15 pinJCN

CN CN CN CN

JCN

CN

Main unit

Option

dehumidifying

heater

Option

dehumidifying

heater

Dehumidifyingheater

(230V:18W)

AX400012x2

Dehumidifyingheater

(100V:18W)

AX4000**x2

PEsensor4

Paperfeedsensor4

Remainingquantitysensor4-1

Remainingquantitysensor4-2

Sizesensor4-1

Sizesensor4-2

Sizesensor4-3

Sizesensor4-4

Sizesensor4-5

Paperlengthsensor4

Traylowerlimitsensor4

Pick-upSOL

LiftM(+)

LiftM(-)

LiftSW

LiftLED

Slidedetection

4Tfan1

Notinstalled

4Tfan2

4Tsize

detection1

4Tsize

detection2

4Tsize

detection3

4Tlength

detection

4Tremaining

quantitydetection1

4Tremaining

quantitydetection2

4Tremaining

quantitydetection3

4Tremaining

quantitydetection4

Notinstalled

For A3LCT

LCTexitportsensor

5Tintermediatesensor

InterfaceUnitsensor

2

1

2

1

2

1

2

1

Upperlimitsensor4

CN101

CN100

CN101

JCN

CN100

CNJCN

CN CN

Shield

6Tpick-upSOL

6Tpaperfeedsensor

6Tpaperendsensor

6Tupperlimitsensor

4Ttransport

sensor

5Ttransport

sensor

6Ttransport

sensor

6TreverseSOL

DSR(Notused)

DTR(Notused)

RXD(Mainunit)

TXD(Mainunit)

4Tpick-upSOL

4TreverseSOL

4Tpaperfeedsensor

4Tpaperendsensor

4Tupperlimitsensor

5Tpick-upSOL

5TreverseSOL

5Tpaperfeedsensor

5Tpaperendsensor

5Tupperlimitsensor

LCTexitportsensor

LCTexitportsensor

5Tintermediatesensor

6Tpick-upSOL

6TreverseSOL

6Tpaperfeedsensor

6Tpaperendsensor

6Tupperlimitsensor

4Ttransportsensor

5Ttransportsensor

6Ttransportsensor

4Tsizedetection1

4Tsizedetection2

4Tsizedetection3

4Tlengthdetection

4Tremainingquantitydetection1



quantitydetection4

4Tremaining

Sensor

Sensor

A4LCT:

Drawer not provided

4Treverse

4Ttransport

4Tpick-upM

5Tpick-upM

4Tpick-upSOL

6Tpick-up

Exitport

4Treverse

5Treverse

5Ttransport

4Tpaperfeedsensor

4Tpaperendsensor

4Tupperlimitsensor

5Tpick-upSOL

5TreverseSOL

5Tpaperfeedsensor

5Tpaperendsensor

5Tupperlimitsensor


CN116 (Red)

CN133 (Mi II)

JCN

CN

M

JCN

CN

M

JCN

CN

M

CN

141CN142


CN164 (miniMi II)

JCN

CN

M

JCN

CN

M

CN165 (miniMi II)

CN

Drawer CN (39P)

Drawer CN (39P)

JCN

JCN

CN154 MOLEX (W)

CN

M

CN

M


CN162 (miniMi II)

JCN

CN

M

JCN

CN

M

CN163 (miniMi II)

CN

Drawer CN (39P)

Drawer CN (39P)

JCN

JCN

CN730 (Mi Red)CN710 (Mi II)

CN CN CN

CN CN

JCN JCN

CN CN

CN160 (miniMi II)

CN

CN162 (miniMi II)

CN

CN

Not connected

A4LCT

4T intermediate

lower sensor interface

harness provided

B8325305

A4LCT: C4155354

A3LCT: B8345306A4LCT: B8325310

A3LCT: B8345301

A4LCT: B8325310

A3LCT: B8345303

A4LCT: B8325300

A3LCT: B8345300

A4LCT: B8325302

A3LCT: B8345321

A4LCT: -

A3LCT: B8345325

A4LCT: B8325308 A4LCT: B8325309

A4LCT: B8325310A4LCT: B8325309

A3LCT: B8345303

A4LCT: B8325310

A3LCT: B8345304

A4LCT:

Drawer not provided A4LCT:

Drawer not provided

A3LCT: B8345330

B8345334(In the tray)A3LCT: B8345332

B8345334(In the tray)

00 (Mi II)

CN

CN

JCN

CN

A4LCT/A3LCT

: C4155352

Transportsensor

Connectiondetection

Manual feed I/F

Manual feed (PAVO)

PWB

5Tfan1

Notinstalled

6Tfan1

Notinstalled

6Tfan2

Notinstalled

6Tsize

detection1

6Tsize

detection2

6Tsize

detection3

6Tlength

detection

6Tremaining

quantitydetection1

6Tremaining

quantitydetection2

6Tremaining

quantitydetection3

6Tremaining

quantitydetection4

5Tfan2

5Tsize

detection1

5Tsize

detection2

5Tlength

detection

5Tremaining

quantitydetection1

5Tremaining

quantitydetection2

5Tremaining

quantitydetection3

5Tremaining

quantitydetection4

5Tsize

detection3

Notinstalled

InterfaceUnitsensor

4Ttraylift

Dooropen/closeSW

6Treverse

6Ttransport

6Ttraylift

5Ttraylift

Intermediatesensor4Tupper

Intermediatesensor4Tlower

Intermediatesensor6T

4Tsizedetection

5Tsizedetection

CN111

JCN

CN

LCTexitportsensor

4TlowertrayliftM(+)

4TlowertrayliftM(-)

5TlowertrayliftM(+)

5TlowertrayliftM(-)

6TlowertrayliftM(+)

6TlowertrayliftM(-)

Dooropen/closedetection

Intermediatesensor4upper

Intermediatesensor4lower

Intermediatesensor6T

Sensor

Sensor

Sensor

Sensor

5Tsizedetection1

5Tsizedetection2

5Tsizedetection3

6Tsizedetection1

6Tsizedetection2

6Tsizedetection3

6Tsizedetection1

5Tsizedetection1

5Tsizedetection2

5Tsizedetection3

4Tsizedetection1

4Tsizedetection2

4Tsizedetection3

6Tsizedetection2

6Tsizedetection3

6Tlengthdetection

6Tremaining

quantitydetection1

6Tremaining

quantitydetection2

6Tremaining

quantitydetection3

6Tremaining

quantitydetection4

5Tlengthdetection





For A4LCT

For A4LCT For A4LCT

6Tsizedetection

CN164 (miniMi II)


Memo

Memo

No part of this publication may be reproduced,stored in a retrieval system, or transmitted inany form or by any means, electronic, mechanical,photocopying, recording, or otherwise, withoutprior written permission of the publisher.

COPYRIGHT © XXXX BYSHARP CORPORATION

ALL RIGHTS RESERVED.

The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder.

LEAD-FREE SOLDER

The alphabet following the LF mark shows the kind of lead-free solder.

(1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD

When repairing a lead-free solder PWB, use lead-free solder thread.

Never use conventional lead solder thread, which may cause a breakdown or an accident.

Since the melting point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the

exclusive-use soldering iron is recommended.

(2) NOTE FOR SOLDERING WORK

Since the melting point of lead-free solder is about 220°C, which is about 40°C higher than that of conventional lead solder, and its soldering

capacity is inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land

separation or may exceed the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when

completion of soldering is confirmed.

Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.

If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron

tip after completion of soldering work.

If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer.

Example:

5mm

Lead-Free

Solder composition

code (Refer to the

table at the right.)

<Solder composition code of lead-free solder>

Solder composition

Sn-Ag-Cu

Sn-Ag-Bi

Sn-Ag-Bi-Cu

Sn-Zn-Bi

Sn-In-Ag-Bi

Sn-Cu-Ni

Sn-Ag-Sb

Bi-Sn-Ag-P

Bi-Sn-Ag

a

b

z

i

n

s

p

Solder composition code

a

(Danish) ADVARSEL !

Lithiumbatteri – Eksplosionsfare ved fejlagtig håndtering.

Udskiftning må kun ske med batteri

af samme fabrikat og type.

Levér det brugte batteri tilbage til leverandoren.

(English) Caution !

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type

recommended by the manufacturer.

Dispose of used batteries according to manufacturer’s instructions.

(Finnish) VAROITUS

Paristo voi räjähtää, jos se on virheellisesti asennettu.

Vaihda paristo ainoastaan laitevalmistajan suosittelemaan

tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden

mukaisesti.

(French) ATTENTION

Il y a danger d’explosion s’ il y a remplacement incorrect

de la batterie. Remplacer uniquement avec une batterie du

même type ou d’un type équivalent recommandé par

le constructeur.

Mettre au rebut les batteries usagées conformément aux

instructions du fabricant.

(Swedish) VARNING

Explosionsfara vid felaktigt batteribyte.

Använd samma batterityp eller en ekvivalent

typ som rekommenderas av apparattillverkaren.

Kassera använt batteri enligt fabrikantens

instruktion.

(German) Achtung

Explosionsgefahr bei Verwendung inkorrekter Batterien.

Als Ersatzbatterien dürfen nur Batterien vom gleichen Typ oder

vom Hersteller empfohlene Batterien verwendet werden.

Entsorgung der gebrauchten Batterien nur nach den vom

Hersteller angegebenen Anweisungen.

(For USA, CANADA)

“BATTERY DISPOSAL”

THIS PRODUCT CONTAINS A LITHIUM PRIMARY

(MANGANESS DIOXIDE) MEMORY BACK-UP BATTERY

THAT MUST BE DISPOSED OF PROPERLY. REMOVE THE

BATTERY FROM THE PRODUCT AND CONTACT YOUR

LOCAL ENVIRONMENTAL AGENCIES FOR INFORMATION

ON RECYCLING AND DISPOSAL OPTIONS.

“TRAITEMENT DES PILES USAGÉES”

CE PRODUIT CONTIENT UNE PILE DE SAUVEGARDE DE

MÉMOIRE LITHIUM PRIMAIRE (DIOXYDE DE MANGANÈSE)

QUI DOIT ÊTRE TRAITÉE CORRECTEMENT. ENLEVEZ LA

PILE DU PRODUIT ET PRENEZ CONTACT AVEC VOTRE

AGENCE ENVIRONNEMENTALE LOCALE POUR DES

INFORMATIONS SUR LES MÉTHODES DE RECYCLAGE ET

DE TRAITEMENT.

CAUTION FOR BATTERY REPLACEMENT

CAUTION FOR BATTERY DISPOSAL

All rights reserved.Printed in Japan.

No part of this publication may be reproduced,stored in a retrieval system, or transmitted,

in any form or by any means,electronic; mechanical; photocopying; recording or otherwise

without prior written permission of the publisher.

Trademark acknowledgements• Microsoft®, Windows®, Windows® 98, Windows® Me, Windows NT® 4.0,

Windows® 2000, Windows® XP, Windows® Vista, Windows® Server 2003 andInternet Explorer® are registered trademarks or trademarks ofMicrosoft Corporation in the U.S.A. and other countries.

• PostScript is a registered trademark of Adobe Systems Incorporated.

• Macintosh, Mac OS, AppleTalk, EtherTalk, LaserWriter, and Safari are registeredtrademarks or trademarks of Apple Computer, Inc.

• IBM, PC/AT, and PowerPC are trademarks of International Business MachinesCorporation.

• Acrobat® Reader Copyright® 1987- 2002 Adobe Systems Incorporated. All rightsreserved. Adobe, the Adobe logo, Acrobat, and the Acrobat logo are trademarks ofAdobe Systems Incorporated.

• PCL is a registered trademark of the Hewlett-Packard Company.

• All other trademarks and copyrights are the property of their respective owners.

COPYRIGHT © 2007 BY SHARP CORPORATION

• Sharpdesk is a trademark of Sharp Corporation.

SHARP CORPORATIONDigital Document System GroupCS Promotion CenterYamatokoriyama, Nara 639-1186, Japan

2007 May Printed in Japan

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