Upload
branden-simmons
View
229
Download
1
Embed Size (px)
Citation preview
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500
Inkjet Head Cleaning
Confidential 2
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Cleaning Unit
When installing new/used inkjet heads on the machine or handling clogged heads, it is necessary to use the cleaning unit.
Confidential 3
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Cleaning Unit (Cont.)
Cleaning the inkjet heads is performed on an as-needed basis, or before inserting a new inkjet head into the system.
Inkjet heads are cleaned one at a time.
Before using the cleaning unit, make sure that:
Filter is clean.
Solvent is clean.
Container is full.
Confidential 4
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Washing Unit (Cont.)
Before performing the cleaning procedure, ensure that the following materials are prepared:
Cleaning unit
Four liters of ink solvent
Large plastic container
Confidential 5
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500 Inkjet Head Preparations – Visual Check
Two 50-pin flat cablesMounting holes
Orifice plate
Confidential 6
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Preparation of the Cleaning Unit
1. Fill the large plastic container with ink solvent.
2. Place the plastic container in the back of the cleaning unit.
3. Insert the two tubes from the back of the bath into the plastic container.
Plastic container
Tubes
Confidential 7
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Preparation of the Cleaning Unit (Cont.)
TAB 4
TAB 3
TAB 2
TAB 1
Venting screw
Confidential 8
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Mechanical Stage
Tightenmounting screws
Inkjet headin the cleaningunit bracket
Ventingscrew
Let the washing unit work for 2-5 minutes with cover closed.
Tap 2
Tap 3Tap 4 Venting
Screw
Confidential 9
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Mechanical Stage (Cont.)
The mechanical stage flushes the inkjet head.
This step should be performed while the cleaning unit cover remains closed.
1. Place the inkjet head in the bracket on the cleaning unit, using the two mounting screws. Make sure there are two rubber seals on the bracket.
2. Open Taps #2 and #4.
3. Turn on the pump for 30 to 60 seconds and release air bubbles from the filter.
4. Open Tap #3.
Confidential 10
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Mechanical Stage (Cont.)
5. Turn on the pump.
6. Allow the cleaning unit to operate for 2 to 5 minutes.
7. If some nozzles are not spraying, rub your finger over the orifice plate using recommended gloves.
8. If there are still some spraying problems, change the flushing pressure.
9. If there are still nozzle problems, perform the ultrasonic bath procedure.
Confidential 11
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Electrical Stage
The electrical stage checks the electrical function of the nozzles in the inkjet head.
Tap 2
Tap 3Tap 4 Venting
Screw
Confidential 12
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Electrical Stage (Cont.)
The electrical stage checks the electrical function of the nozzles in the inkjet head.
1. Close tap #2.
2. Verify that the pump is off.
3. Close Tap #4 and open Tap #1.
4. Connect a flat cable to the cleaning unit and close the latches.
5. Allow the cleaning unit to operate for 2 to 5 minutes.
6. Turn on the pulse generator.
7. Tune the pulse generator to the highest frequency.
Confidential 13
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Electrical Stage (Cont.)
8. Allow the nozzles to spray for 15-30 seconds (check for missing nozzle spray).
9. Rotate the frequency selector three clicks to the right.
10.Slide a piece of paper in front of the inkjet head (check for missing nozzle spray ).
11.Turn on the pump for 5 seconds.
12.Turn on the pulse generator again.
Confidential 14
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Ultrasonic Bath
When encountering heavy clogged inkjet heads, it is recommended to use the Ultrasonic Bath.
Use only distilled water.
Pipette Inkjet head
Distilled water at room temperature
Confidential 15
Engineer Training
Inkjet Head Cleaning
TJ8300 / TJ8500Static Washing Unit
Cover
M otor & F ilter
M ain Sw itch and DC Power Supply Connector
Drainage Tap
C over
F ill Solvent H ere