Canon Pixma MP510 Service Manual

PIXMA MP510 SERVICE MANUAL

Revision 0

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QY8-13AZ-000

Scope

This manual has been issued by Canon Inc., to provide the service technicians of this product with the information necessary for qualified persons to learn technical theory, installation, maintenance, and repair of products. The manual covers information applicable in all regions where the product is sold. For this reason, it may contain information that is not applicable to your region.

Revision

This manual could include technical inaccuracies or typographical errors due to improvements or changes made to the product. When changes are made to the contents of the manual, Canon will release technical information when necessary. When substantial changes are made to the contents of the manual, Canon will issue a revised edition.

The following do not apply if they do not conform to the laws and regulations of the region where the manual or product is used:

Trademarks

Product and brand names appearing in this manual are registered trademarks or trademarks of the respective holders.

All rights reserved. No parts of this manual may be reproduced in any form or by any means or translated into another language without the written permission of Canon Inc., except in the case of internal business use.

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I. MANUAL OUTLINE

This manual consists of the following three parts to provide information necessary to service the PIXMA MP510:

Part 1: Maintenance Information on maintenance and troubleshooting of the PIXMA MP510

Part 2: Technical Reference

ew technology and technical information such as FAQ's (Frequently Asked Questions) of the PIXMA MP510

Part 3: Appendix Block diagrams and pin layouts of the PIXMA MP510

Reference: This manual does not provide sufficient information for disassembly and reassembly procedures. Refer to the graphics in the separate Parts Catalog.

II. TABLE OF CONTENTS

Part 1: MAINTENANCE

1. MAINTENANCE 1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer 1-2. Customer Maintenance 1-3. Product Life 1-4. Special Tools 1-5. Serial Number Location

2. LIST OF ERROR DISPLAY / INDICATION 2-1. Operator Call Errors 2-2. Service Call Errors 2-3. Other Error Messages 2-4. Warnings 2-5. Troubleshooting by Symptom

3. REPAIR 3-1. Notes on Service Part Replacement (and Disassembling / Reassembling) 3-2. Special Notes on Repair Servicing

(1) Side cover L2 and front cover L removal (2) Side cover R2 and front cover R removal (3) Main case removal (4) Scanner flexible cable attachment (5) Timing sensor unit cable wiring (6) Flexible cable between the card board ass'y and the logic board ass'y (7) Carriage unit flexible cable wiring (8) Power supply unit cable wiring (9) Ink tube installation (10) Platen link assembly (11) Emblem removal

3-3. Adjustment / Settings

(1) Paper feed motor adjustment (2) Carriage rail adjustment (3) Document pressure sheet adjustment (4) Front feeder paper feed roller cleaning (5) Grease application (6) Ink absorber replacement (7) Ink absorber counter setting (8) User mode (9) Service mode

Service mode operation Destination settings Ink absorber counter resetting Ink absorber counter setting Button and LCD test

3-4. Verification Items

(1) Service test print (2) EEPROM information print

4. MACHINE TRANSPORTATION

Part 2: TECHNICAL REFERENCE

1. NEW TECHNOLOGIES

2. CLEANING MODE AND AMOUNT OF INK PURGED

3. PRINT MODE 3-1. Normal Color Printing via Computer 3-2. Normal Grayscale Printing via Computer 3-3. Borderless Printing via Computer 3-4. Manual Duplex Printing via Computer 3-5. Card / Camera Direct Printing 3-6. Copying

4. FAQ (Problems Specific to the MP510 and Corrective Actions)

Part 3: APPENDIX

1. BLOCK DIAGRAM

2. CONNECTOR LOCATION AND PIN LAYOUT 2-1. Logic Board Ass'y 2-2. Card Slot Board 2-3. Operation Panel Board 2-4. Carriage Board

3. PIXMA MP510 SPECIFICATIONS

1. MAINTENANCE

1-1

1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement

Consumables by Service Engineer

(1) Adjustment

Adjustment Timing Purpose Tool

EEPROM initialization

Destination settings (EEPROM settings)

Ink absorber counter resetting (EEPROM settings)

Ink absorber counter value setting

(EEPROM settings) Paper feed motor

position adjustment

Carriage rail position adjustment

At logic board replacement

At logic board replacement To set the destination. None.

- At logic board replacement

- At ink absorber replacement

- At logic board replacement

At paper feed motor replacement To adjust the belt tension. (Position the

- At carriage unit replacement

- After carriage rail removal and re-assembly

To initialize settings.

To reset the ink absorber counter. None.

To set the ink amount data in the ink absorber to the ink absorber counter.

paper feed motor so that the belt is stretched tight.)

To adjust the distance between the print head and paper (between the carriage

and the platen).

None. Perform in the

service mode.

Perform in the service mode.

None. Perform in the

service mode. None. 5 min.

None.

Approx.

time

1 min.

5 min.

Print head alignment

Grease application

Ink system function

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check

LCD language

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settings

Document pressure

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sheet position adjustment

*1: The screws securing the paper feed motor may be loosened only at replacement of the paper feed motor unit. *2: Automatic print head alignment using the print head alignment sheet (via the operation panel on ly).

- At print head replacement

- At logic board replacement

- When print quality is not satisfying

- At carriage unit or carriage rail replacement

- At LF earth spring or paper feed roller replacement

- At platen replacement

- At logic board replacement

- At spur base unit replacement

- At carriage unit replacement

At logic board replacement

- At document pressure sheet replacement

- At document pressure plate ass'y replacement

To secure the dot placement accuracy.

To maintain sliding properties of the following items:

- Carriage unit

- LF earth spring

- Eject roller To maintain detection functionality for

presence of the ink tanks and each ink tank position.

To set the language to be displayed on the LCD.

To adjust the pressure sheet to fit in place to the reference mark in the left back.

None. 3 min.

FLOIL KG-107A IF-20

None. Perform in the

service mode. None.

Perform in the user mode.

None. 1 min.

(manual,

)

auto

1 min.

(2) Periodic maintenance

No periodic maintenance is necessary.

(3) Periodic replacement parts

There are no parts in this machine that require periodic replacement by a service engineer.

(4) Replacement consumables

There are no consumables that require replacement by a service engineer.

1-2. Customer Maintenance

1-2

Adjustment Timing Purpose Tool

Print head alignment

Print head cleaning When print quality is not satisfying. To improve nozzle conditions. - Machine buttons

Print head deep cleaning

Ink tank replacement

ASF paper feed roller cleaning

Front feeder paper feed roller cleaning

Bottom plate cleaning

At print head replacement.

When print quality is not satisfying, and not improved by print head cleaning.

When an ink tank becomes empty. ("No ink error" displayed on the monitor or on the machine LCD, or short flashing of an ink tank LED)

When paper does not feed properly, or when the print side of the paper is smeared

When paper does not feed properly, or when the back side of the paper is smeared

When the back side of the paper is smeared.

To ensure accurate dot placement. - Machine buttons

- Computer (MP driver)

To improve nozzle conditions. - Machine buttons

- Computer (MP driver)

To replace the empty ink tank. None. 1 min.

To clean the paper feed rollers. Machine buttons

To clean the paper feed rollers. None.

Manually clean the rollers with a cotton swab.

To clean the platen ribs.

- Machine buttons

- Computer (MP driver)

Approx.

time

3 min. (manual, auto*)

1 min.

2 min.

1 min.

Scanning area cleaning

* Automatic print head alignment using the print head alignment sheet (via the operation panel on ly).

1-3. Product Life

(1) Machine

Specified print volume (I) or the years of use (II), whichever comes first. (I) Print volume: 12,000 pages

(II) Years of use: 5 years of use

(2) Print head

Print volume: 40,000 pages

When the following are dirty:

- Platen glass

- Document pressure sheet

To clean the applicable items.

Black 1,500 character pattern 5,500 pages Color 7.5% duty per color pattern 3,600 pages

A4, photo, borderless printing 200 pages 4 x 6, photo, borderless printing 2,200 pages Postcard, photo, borderless printing

Soft, dry, and clean lintfree cloth.

500 pages

1 min.

(3) Ink tank (target value)

Color document (ISO/IEC FCD24712)

*1: Declared yield value in accordance with ISO/IEC FCD24711. Values obtained by continuous printing. *2: When printing Canon standard patterns on 4" x 6" Photo Paper Plus Glossy continuously with the default setting s of Photo

Photo (4" x 6")

Average yield PGI-5BK

510 pages 880 pages 680 pages 690 pages

(3,645 pages)

CLI-8C CLI-8M CLI-8Y

426 pages

280 pages 291 pages

Paper Plus Glossy using Windows XP printer driver in borderless printing mode and Wind ows XP Photo Printing Wizard. Declared

1-3

yield value determined based on Canon standard method referring to ISO/IEC FCD2 4712.

Note: Ink yield may vary depending on texts/photos printed, applications soft ware used, prin t mode and type of paper used.

1-4. Special Tools

FLOIL KG-107A

ELECTRICITY GREASE IF-20

1-5. Serial Number Location

On the spur base unit (visible at the front center when the scanning unit is opened).

Name Tool No. Application Remarks

QY9-0057-000

CK-8006-000 To be applied to the sliding portions of the

To be applied to the sliding portions of the carriage rail and main chassis.

LF earth spring.

In common with the S520.

To the table of contents To the top

2. LIST OF ERROR DISPLAY / INDICATION

1-4

Errors and warnings are displayed by the following ways:

1) Operator call errors are indicated by the Alarm LED lit in orange, and the error and its solution are displayed on the LCD in text and by icon.

2) Messages during printing from a computer are displayed on the MP driver Status Monitor.

3) Error codes are printed in the "operator call/service call error record" area in EEPROM information print.

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Buttons valid when an operator call error occurs:

1) ON/OFF button: To turn the machine off and on again.

2) OK button: To clear and recover from an error. In some operator call errors, the error will automatically be cleared when the cause of the error is eliminated, and pressing the OK button may not be necessary.

3) Stop/Reset button: To cancel the job at error occurrence, and to clear the error.

2-1. Operator Call Errors (by Alarm LED Lit in Orange)

Error

No paper in the ASF.

No paper in the front feeder.

Paper jam. [1300] Paper jam in the rear

guide. No ink.

Ink tank not installed.

The print head is not installed, or it is not

properly installed. Print head temperature

sensor error Faulty EEPROM data of

the print head Multiple ink tanks of the

same color installed. Ink tank in a wrong

position. Warning: The ink

absorber becomes almost full.

The connected digital camera or digital video camera does not support

Camera Direct Printing. Failed in automatic print

head alignment.

Error code

[1000]

[1003]

[1303]

[1600]

[1660]

[1401]

[1403]

[1405 / 1682]

[1681]

[1680]

[1700 / 1701 / 1710 / 1711]

[2001]

[2500]

Auto sheet feeder. There is no paper. Load paper and press [OK].

Front feeder. There is no paper. Load paper and press [OK].

The paper is jammed. Clear the paper and press [OK].

The following ink may have run out. Replacing the ink tank is recommended. (U041)

The following ink tank cannot be recognized. (Applicable ink tank icon) (U043)

Print head is not installed. Install the print head.

The type of print head is incorrect. Install the correct print head.

More than one ink tank of the following color is installed. (U071)

Some ink tanks are not installed in place. (U072)

Contact the support center or service center for ink absorber replacement. Press [OK] to

continue printing.

Incompatible device detected. Remove the device.

Failed to scan head alignment sheet. Check orientation and position, and make sure platen

and sheet are clean. <See manual>

Message on the LCD

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Confirm that the ASF is selected as the paper source. Set the paper in the ASF, and press the OK button.

Confirm that the front feeder is selected as the paper source. Set the paper in the front feeder, and press the OK button.

Remove the jammed paper, and press the OK button.

Replace the empty ink tank(s), and close the cover.

Pressing the OK button will clear the error without ink tank replacement, however, ink may run out during printing.

Install the applicable ink tank(s) properly, and confirm that the LED's of all the ink tanks light red.

Install the print head properly.

Re-set the print head. If the error is not cleared, the print head may be defective. Replace the

print head.

Replace the wrong ink tank(s) with the correct one(s).

Install the ink tank(s) in the correct position.

Replace the ink absorber, and reset its counter. [See 3-3. Adjustment / Settings, (6) Service

mode.] Pressing the OK button will exit the error, and

enable printing without replacing the ink absorber. However, when the ink absorber becomes full, no further printing can be performed unless the applicable ink absorber is replaced.

Remove the cable between the camera and the machine.

Press the OK button to clear the error, and perform automatic print head alignment again after confirming the following:

Solution

The remaining ink amount

1-5

unknown.

Ink tank not recognized. [1684]

Ink tank not recognized.

Scanning unit (printer cover) open.

[1683]

[1410 to 1419]

[1200]

- Fill in all the circles on the print head alignment sheet.

- Place the sheet in the correct orientation and position.

(Applicable ink tank icon) The remaining level of the following ink

cannot be correctly detected. Replace the ink tank. (U130)

The following ink tank cannot be recognized. (U140)

(Applicable ink tank icon) The following ink tank cannot be recognized.

(U150) (Applicable ink tank icon)

Cover is open. Close cover.

An ink tank which has once been empty is installed. Replace the applicable ink tank with a new one.

Printing with a once-empty ink tank can damage the printer.

To continue printing without replacing the ink tank(s), press the OK button for 5 sec. or longer to disable the function to detect the remaining ink amount. After the operation, it is recorded in the printer EEPROM that the function to detect the remaining ink amount was disabled.

A non-supported ink tank is installed (the ink tank LED is turned off). Install the supported ink tanks.

A hardware error occurred in an ink tank (the ink tank LED is turned off). Replace the ink tank(s).

Close the scanning unit (printer cover).

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2-2. Service Call Errors (by Cyclic Blinking in Orange (Alarm LED) and Green (Power LED), or

Both LEDs Lit)

Service call errors are indicated by the number of cycles the Alarm LED and Power LED blink, and the corresponding error code is displayed on the LCD.

Cycles of blinking

in orange (Alarm

LED) and green

(Power LED)

2 times Carriage error [5100] An error occurred in the carriage encoder signal. - Carriage unit (QM2-3753)

3 times

4 times Purge cam

5 times

6 times Internal

7 times Ink absorber

Error

Line feed error [6000] An error occurred in the LF encoder signal. - Timing sensor unit (QM2-3878)

sensor error ASF (cam)

sensor error

temperature error

full

Error

code

[5C00] An error occurred in the purge unit. - Purge unit (QM2-3754)

[5700]

[5400] The internal temperature is not proper.

[5B00, 5B10, 5B01,

5B11]

This error takes place when feeding paper from the ASF after an error occurred in the ASF cam sensor.

The ink absorber is full.

Error codes: Overseas:

5B00: Main ink absorber 5B10: Borderless-print ink absorber

Japan:

5B01: Main ink absorber

Conditions

(Replacement of listed parts, which

- Timing slit film (QC1-9542)

- Logic board (QM2-3827)

- Carriage motor (QM2-3872)

- Timing slit disk film (QC1-9597)

- Feed roller (QL2-1407)

- Logic board (QM2-3827)

- Paper feed motor (QM2-3873)

- Logic board (QM2-3827)

- Sheet feed unit (QM2-3762)

- ASF_PE sensor board (QM2-3877)

- Logic board (QM2-3827)

- Carriage unit (QM2-3753)

- Ink absorber kit (QY5-0178)

Solution

are likely to be faulty)

8 times

1-6

9 times EEPROM

10 times VH monitor

12 times PG position

15 times

19 times Ink tank

20 times Other

22 times

Alarm and Power LEDs lit

Print head temperature rise error

error

USB Host VBUS overcurrent

osition sensor

error

hardware error Scanner home

position error

ROM error, RAM error

5B11: Borderless-print ink absorber

[5200] The print head temperature exceeded the specified

value.

[6800] A problem occurred in writing to the EEPROM. - Logic board (QM2-3827)

[B200] The internal temperature exceeded the specified

value.

[5C10] An error occurred in the PG motor during purging

operation.

[9000] The USB Host VBUS is overloaded. - Logic board (QM2-3827)

- Print head (QY6-0070)

- Logic board (QM2-3827)

- Print head (QY6-0070)

- Carriage unit (QM2-3753)

- Logic board (QM2-3827)

- Sheet feed unit (QM2-3762)

- Logic board (QM2-3827)

- Purge unit (QM2-3754)

[6502] None of the ink tank position is detected.

[6500] The PCI bus error is detected by the ASIC. - Logic board (QM2-3827)

- Spur base unit (QM2-3750)

- Logic board (QM2-3827)

[5010] The scanner unit cannot detect the home position, or

󲩷

the scanner unit warming-up is not performed properly at power-on.

On the LCD, "Scanner is not operating correctly." is displayed.

A flash ROM or RAM checksum error occurred at hard-power-on.

- Scanner unit (QM2-3775)

- Logic board (QM2-3827)

Note: Before replacement of the logic board ass'y, check the ink absorber counter value (by service test print or EEPROM information

print). If the counter value is 7% or more, also replace the ink absorber kit (QY5-0178) when replacing the logic board ass'y, or register the current ink absorber counter value to the replaced new logic board instead. [See 3-3. Adjustment / Settings, (9)

Service mode, for details.]

2-3. Other Error Messages

Message on the LCD Cause Solution

The selected paper cannot be fed from front feeder. Change the paper source.

Borderless print is not available for paper from the front feeder. Change the paper source and press [OK].

Cannot specify the followings together. Change one of the settings.

Device memory is full. Cannot continue process. Reduce the number of photos to print.

Failed to scan. Either document cannot be scanned or is not placed on the platen glass.

Press <>. (<>: Color button icon) Press <>. (<>: Black button icon) There are no photos in memory card. Supported image files are not in the memory

The paper type being used is not supported for paper feeding from the front feeder.

Borderless print is attempted when the front feeder is selected as the paper source.

Settings made conflict each other. The error message is displayed for a while, then

The memory is not sufficient to do the print job.

The machine failed in scanning the document for Fit-to-page copy, or photos or films were

not recognized in pre-scanning. The Black button was pressed, but it is invalid.

The Color button was pressed, but it is invalid.

card.

Change the paper source to the ASF.

the LCD automatically returns to the display before the error occurrence.

Reduce the amount of data to be printed, or print from a computer.

Press the OK button to clear the error.

A temporary error. Press the Color button to continue the operation.

A temporary error. Press the Black button to continue the operation.

A temporary error.

- Confirm that supported image files are in the memory card.

- Images with double-byte characters used in the file name (or folder name) may not be recognized. Change the file (or folder) name so that it contains only single-byte alphanumeric characters.

The value exceeds the number of copies

1-7

you can print.

Memory card is not set. Insert the card after checking the direction.

DPOF information is not saved in the memory card.

The number of copies to print is not set. Input the number of copies.

This layout is available only for A4 or

8.5"x11"(215x279).

Settings cannot be changed when printing stickers.

Change the setting after removing the card.

The card is currently write-enabled. Set to read-only mode before performing operation.

The paper size is not correct. Check the page size you have set.

Failed to scan Photo Index Sheet. Check the orientation, position and marking. <See manual>

- If images are edited on the computer, print them from the computer.

During selecting images or specifying the number of copies, the total print quantity exceeds the prescribed value of 999.

No memory card is inserted in the slot. Set a memory card.

DPOF print was selected in the menu, but no DPOF files are contained in the memory card.

Multi-photo print was attempted without specifying the print quantity (with the print quantity left "0" (zero)).

In Layout print, "Mixed 1, 2, or 3" which is available only with A4 or LTR size paper is selected, but the paper size is not set to A4 or LTR.

With Sticker print selected, the Settings button was pressed.

With a memory card inserted in the slot, change of the Read/Write attribute was attempted.

With the memory card set to the Read/write mode, Card Direct printing operation was attempted from the menu.

Non-supported size of paper for PictBridge Camera Direct printing is selected.

The machine failed in scanning the Photo Index Sheet.

A temporary error. After the error message is displayed for a while, the last operation before the error is cancelled, and the total print quantity returns to the value before the error.

A temporary error. The error message is displayed for a while, then the LCD automatically returns to the display before the error occurrence.

A temporary error. The error message is displayed for a while, then disappears. Specify the print quantity.

A temporary error. The error message is displayed for a while, then the LCD automatically returns to the display before the error occurrence.

A temporary error. Remove the memory card, then change the Read/Write attribute.

A temporary error. Remove the memory card, change the memory card setting to Read-only, then perform Card Direct printing.

Cancel printing on the digital camera. Check the paper size, then print again.

Press the OK button to clear the error. Confirm the following, then try again:

- Fill in all the circles on the Photo Index Sheet.

- Place the sheet in the correct orientation and position.

2-4. Warnings

Warning Message on the LCD Solution

Low ink The following ink is low. Continue?

Restrictions on paper The current paper cannot be set. Change the size and

USB cable not connected Cancellation of image

select information

(Icon of each ink tank) Yes No

In Camera Direct Printing, only "Yes" can be selected.

type. Connect USB cable and turn on the PC.

Reset the selected photo information? Yes No

- Select => Printing starts, and it is indicated on the LCD.

- Select No, and press the OK button. => Printing is cancelled, and the LCD returns to the

Re-select the supported paper type and size.

Connect the USB cable, then turn on the computer. When one or more images are selected in Layout print,

and if a user tries to display the menu or sub-menu, the message is displayed.

- Select => The image selection is cancelled, and the menu

- Select No, and press the OK button. => The LCD returns to the display immediately

, and press the OK button.

Yes

display immediately before printing was attempted.

, and press the OK button.

Yes

or sub-menu is displayed.

before the message was displayed.

1-8

2-5. Troubleshooting by Symptom

Symptom Solution

Faulty operation The power does not turn on.

The power turns off immediately after power-on.

A strange noise occurs.

Nothing is displayed on the LCD. - Confirm the connection between the operation panel, the LCD

A portion of the LCD is not displayed. - Perform the button and LCD test in the service mode, and

Paper feed problems (multi-feeding, skewed feeding, no feeding).

Carriage movement problems (contact to other parts, strange noise).

Faulty scanning (no scanning, strange noise).

Unsatisfactory print quality No printing, or no color ejected. - Confirm that the ink tanks are installed properly.

- Confirm the connection of

- the power cord, and

- between the logic board and the power supply unit.

- Replace the

- power supply unit, or

- logic board.

- Remove foreign material.

- Attach a removed part if any.

- Check the operation of the moving parts (such as purge unit, carriage unit, and paper feeding mechanism)

- Replace a faulty part, if any.

unit, and the logic board.

- Replace the

- LCD unit, or

- logic board.

confirm that the LCD is displayed without any segments missing.

- Confirm the connection between the operation panel, the scanning unit, and the logic board.

- Replace the

- LCD unit, or

- logic board.

- Examine the inside to confirm that no parts are damaged, and the rollers are clean.

- Remove foreign material.

- Adjust the paper guide properly.

- Re-set the paper.

- Confirm the selected paper source.

- Confirm that the rear cover fits in place properly (for paper feeding from the front feeder).

- Confirm the connection of each harness and the logic board.

- Replace the

- sheet feeder unit,

- ASF cover unit,

- bottom case unit (for paper feeding from the front feeder), or

- logic board.

- Confirm that the carriage timing slit strip film is free from damage or grease.

- Clean the carriage timing slit strip film (with ethanol and lintfree paper).

- Remove foreign material.

- Replace the

- carriage timing slit strip film, or

- carriage unit.

- Confirm the connection between the scanning unit and the logic board.

- Replace the

- scanning unit, or

- logic board.

- Perform print head maintenance.

- Replace the

- ink tank,

- print head*1.

1-9

- Remove foreign material from the purge unit caps, if any.

- Replace the

- purge unit, or

- logic board.

Printing is faint, or white lines appear on printouts even after print head cleaning.

Line(s) not included in the print data appears on printouts.

Paper gets smeared. - Feed several sheets of paper.

A part of a line is missing on printouts. - Replace the

Color hue is incorrect. - Confirm that the ink tanks are installed properly.

Printing is incorrect. Replace the logic board.

- Remove and re-install the print head.

- Confirm that the ink tanks are installed properly.

- Perform print head maintenance.

- Replace the

- ink tank,

- print head*1,

- purge unit, or

- logic board.

- Perform bottom plate cleaning.

- Clean the paper path with cotton swab or cloth.

- Clean the front feeder paper feed rollers.

- ink tank, or

- print head*1.

- Perform print head maintenance.

- Replace the

- ink tank, or

- print head*1.

- Perform print head alignment.

Faulty scanning

No ejection of black ink. - Confirm that the ink tanks are installed properly.

- Perform print head maintenance.

- Replace the

- ink tank, or

- print head*1.

- Remove foreign material from the purge unit caps, if any.

- Replace the purge unit.

Graphic or text is enlarged on printouts.

No scanning. - Confirm the connection between the scanning unit and the logic

Streaks or smears on the scanned image. - Clean the platen glass.

When enlarged in the carriage movement direction:

- Clean grease or oil off the timing slit strip film.

- Replace the

- timing slit strip film,

- carriage unit, or

- logic board.

When enlarged in the paper feed direction:

- Clean grease or oil off the timing slit disk film.

- Replace the

- timing slit disk film,

- timing sensor unit,

- LF roller, or

- logic board.

board.

- Replace the

- scanning unit, or

- logic board.

- Confirm the connection between the scanning unit and the logic board.

- Replace the

1-10

- scanning unit,

- logic board, or

- document pressure sheet.

*1: Replace the print head only after the print head deep cleaning is performed 2 times, and when the problem persists.

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To the table of contents To the top

3. REPAIR

1-11

3-1. Notes on Service Part Replacement (and Disassembling / Reassembling)

Service part

Logic board ass'y QM2-3827

Absorber kit QY5-0178

Carriage unit QM2-3753

Paper feed motor QM2-3873

Spur base unit

QM2-3750

Document pressure plate ass'y

QM2-3756, Document pressure sheet QC1-9514, Scanner unit QM2-3775

Timing slit strip film QC1-9542

Timing slit disk film

Notes on replacement

- Before removal of the logic board ass'y, remove the power cord, and allow for approx. 1 minute (for discharge of capacitor's accumulated charges), to prevent damages to the logic board ass'y.

- Before replacement, check the ink absorber counter value (by service test print or EEPROM information print).

[See 3-4. Verification Items, (1)

Service test print, or (2) EEPROM information print, for

details.]

- The screws securing the carriage rail are allowed to be loosened only at carriage replacement. Before removing the screws, mark the positions of the screws on the carriage rail so that they will be returned to their original positions after the carriage is replaced.

- The screws securing the paper feed motor are allowed to be loosened. (DO NOT loosen any other red screws.)

- Upon contact with the film, wipe the film with ethanol.

- Confirm no grease is on the film. (Wipe off any grease thoroughly with ethanol.)

Adjustment / settings Operation check

After replacement:

1. Initialize the EEPROM.

2. Set the destination in the EEPROM.

3. Set the ink absorber counter value.

4. Set the language to be displayed on the LCD.

[See 3-3. Adjustment / Settings,

(9) Service mode, for details of 1

to 4]

5. Perform the print head alignment in the user mode.

After replacement:

1. Reset the ink absorber counter.

[See 3.3. Adjustment / Settings,

(9) Service mode.]

At replacement:

1. Apply grease to the sliding portions.

[See 3-3. Adjustment /

Settings, (5) Grease application.]

After replacement:

1. Adjust the distance between the print head and the paper (between the carriage rail and the platen).

[See 3.3. Adjustment /

Settings, (2) Carriage rail adjustment.]

2. Check the ink system function. [See 3.3. Adjustment /

Settings, (9) Service mode.]

3. Perform the print head alignment in the user mode.

At replacement:

1. Adjust the paper feed motor.

[See 3-3. Adjustment / Settings,

(1) Paper feed motor adjustment.]

After replacement:

1. Check the ink system function.

[See 3.3. Adjustment / Settings,

(9) Service mode.]

At replacement:

1. Adjust the document pressure sheet position.

[See 3.3. Adjustment / Settings,

(2) Carriage rail adjustment.]

After replacement:

1. Perform the print head alignment in the user mode.

- EEPROM information print

- Service test print

- Printing via USB connection

- Copy

- Direct printing from a digital camera

- Service test print

- EEPROM information print

- Service test print (Confirm ink system function.)

- Printing on thick paper

- Service test print

QC1-9597 - Do not bend the film.

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Print head QY6-0070

*1: General notes:

- Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly. See 3-2. Special Notes on Repair Servicing, or Parts Catalog, for details.

- Do not drop the ferrite core, which may cause damage.

After replacement:

1. Perform the print head alignment in the user mode.

- Service test print

- Protect electrical parts from damage due to static electricity.

- Before removing a unit, after removing the power cord, allow the machine to sit for approx. 1 minute (for capacitor discharging to protect the logic board ass'y from damages).

- Do not touch the timing slit strip film and timing slit disk film. No grease or abrasion is allowed.

- Protect the units from soiled with ink.

- Protect the housing from scratches.

- Exercise caution with the red screws, as follows:

i. The screws of the paper feed motor may be loosened only at replacement of the paper feed motor unit (DO NOT loosen

them in other cases).

ii. The screws securing the carriage rail may be loosened only at replacement of the carriage unit. After carriage unit

replacement, print on thick paper to confirm that the distance between the print head and paper (between the carriage rail and the platen) is correct, and that the print head does not contact the paper during printing. If the print head contacts the paper, adjust the carriage rail position, while referring to [3-3. Adjustment / Settings, (2) Carriage rail adjustment.]

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3-2. Special Notes on Repair Servicing

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(1) Side cover L2 and front cover L removal

i) Remove 1 screw from the front cover L.

ii) While pushing the lock pin, slide the front cover L to the right to remove it.

iii) Release the hook of the right front of the side cover L2, while pulling the cover downward.

iv) Slide the side cover L2 toward the machine front, and remove it.

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(2) Side cover R2 and front cover R removal

i) Release the hook of the side cover R2.

ii) Slide the side cover R2 toward the machine front, and remove it.

iii) Remove 1 screw from the front cover R.

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iv) Remove 2 hooks (No. 1 in the photo below). While pressing the lock pin (No. 2 in the photo below), slide the front cover R

toward the machine front, and remove it.

(3) Main case removal

i) Remove the front covers L / R, side covers R1 / R2 / L1 / L2, and scanner unit. ii) Release 2 bosses, and remove the ASF cover unit.

iii) Remove 4 screws and the main case.

(4) Scanner flexible cable attachment

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i) On the double-sided adhesive tape in the right back of the top of the main case, attach the flexible cable.

The cores should be located as follows:

- Place the core (No. 2 in the photo below) so that the rib (No. 1 in the photo below) is between the core edges (between the blue lines in the photo).

- Align another core (indicated by the red arrow in the photo below) to the main case protrusion edges (blue lines in the photo below).

ii) Attach the FFC sheet, with its right back portion passing under the flexible cable, as shown below (blue circle).

iii) Connect the flexible cable connectors at 3 locations (indicated by the red arrows), while passing the cable through the main case

frame as shown below (blue circle).

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