Canon MP800 Service Manual

PIXMA MP800

SER VICE MANUAL

Canon

Copyright 2005, Canon U.S.A. This technical publication is the proprietary and confidential information of Canon U.S.A. which shall be retained for reference purposes by Authorized Service Facilities of Canon U.S.A. Its unauthorized use is prohibited.

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.

󲩷

I. MANUAL OUTLINE

This manual consists of the following three parts to provide information necessary to service the PIXMA MP800:

Part 1: Maintenance Information on maintenance and troubleshooting of the PIXMA MP800

Part 2: Technical Reference

ew technology and technical information such as FAQ's (Frequently Asked Questions) of the PIXMA MP800

Part 3: Appendix Block diagrams and pin layouts of the PIXMA MP800

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. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer

-2. Customer Maintenance

-3. Product Life

-4. Special Tools

-5. Serial Number Location

2. LIST OF ERROR DISPLAY / INDICATION

-1. Operator Call Errors

-2. Service Call Errors

-3. Other Error Messages

-4. Warnings

-5. Troubleshooting by Symptom

3. REPAIR

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

-2. Special Notes on Repair Servicing

(1) External cover, scanner unit, and FAU removal

(2) Operation panel removal

(3) Flexible cable and harness wiring, connection

-3. Adjustment / Settings

(1) Paper feed motor adjustment

(2) Grease application

(3) Waste ink counter setting

(4) White sponge sheet attachment

(5) Solenoid position

(6) Front door damper position

(7) User mode

(8) Service mode

-4. Verification Items

(1) Service test print

(2) EEPROM information print

4. MACHINE TRANSPORTATION

Service mode operation

Destination settings

Button and LCD test

Waste ink amount setting

LF correction

Part 2: TECHNICAL REFERENCE

1. NEW TECHNOLOGIES

2. CLEANING MODE AND AMOUNT OF INK PURGED

3. PRINT MODE

-1. Normal Color Printing via Computer

-2. Normal Grayscale Printing via Computer

-3. Borderless Printing via Computer

-4. Duplex Printing via Computer

-5. Camera Direct Printing

-6. Card Direct / Photo Direct / Wireless Printing

-7. Copying

4. SCAN MODE

5. FAQ (Problems Specific to the MP800 and Corrective Actions)

Part 3: APPENDIX

1. BLOCK DIAGRAM

2. CONNECTOR LOCATION AND PIN LAYOUT

-1. Logic Board Ass'y (Main Board)

-2. Carriage Board (Print Head Connector)

-3. Memory Card Board

-4. IrDA / PictBridge Board

-5. Operation Panel Board

3. PIXMA MP800 SPECIFICATIONS

art 1

MAINTENANCE

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

LCD language settings

Destination settings (EEPROM settings)

Waste ink counter resetting (EEPROM settings)

Waste ink amount setting

(EEPROM settings)

Paper feed motor position adjustment

At logic board ass'y replacement

At logic board replacement To set the language to be displayed

At logic board ass'y replacement

- At logic board replacement

- At waste ink absorber replacement

- At logic board replacement

- At waste ink absorber replacement

At paper feed motor replacement

To initialize settings.

on the LCD.

To set the destination.

To reset the waste ink counter.

To set the waste ink amount to the waste ink counter.

To adjust the belt tension. (Position the paper feed motor so that the belt is stretched tight.)

None.

Perform in the service mode.

None.

Perform in the user mode.

None.

Perform in the service mode.

None.

Perform in the service mode.

None.

Perform in the service mode.

None.

Approx.

time

1 min.

2 min.

CD / DVD detection sensor light volume correction

Grease application - At carriage unit replacement

New Ink system function

check

FAU sponge sheet adjustment

Note: DO NOT loosen the red screws at both ends of the carriage shaft, securing the print head position, as they are not re-

*1: Only for CD / DVD printing supported regions.

adjustable.

The red screws securing the paper feed motor may be loosened only at replacement of the paper feed motor unit.

- At logic board replacement

- At carriage unit replacement

- At PR shaft ass'y replacement

- At CL base or CL gear replacement

- At logic board replacement

- At platen unit replacement

- At carriage unit replacement

- At FAU sponge sheet replacement

- At FAU sponge frame replacement

- At scanning unit replacement

To correct the light volume for the CD / DVD detection sensor.

- To maintain sliding properties of the carriage shaft and the lift cam shaft.

- To protect the machine's sliding portions (gears).

To maintain detection functionality for presence of the ink tanks and each ink tank position.

To attach the FAU sponge sheet in the proper position.

None.

Perform in the service mode.

FLOIL KG-107A 1 min.

None. Perform in the

service mode.

None. 2 min.

2 min.

1 min.

(2) Periodic maintenance

No periodic maintenance is necessary.

(3) Periodic replacement parts

There are no

arts in this machine that require periodic replacement by a service engineer.

(4) Replacement consumables

(2)

1-2

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

1-2. Customer Maintenance

Adjustment Timing Purpose Tool

Print head alignment

Print head cleaning

Print head deep cleaning

Ink tank replacement

Paper feed roller cleaning

CD / DVD print position adjustment

Bottom plate cleaning

Scanning area cleaning

ASF sub- roller cleaning

At print head replacement. To ensure accurate dot placement. - Machine buttons

When print quality is not satisfying. To improve nozzle conditions.

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 short flashing of an ink tank LED)

When paper does not feed properly. To clean the paper feed rollers. Machine buttons 2 min.

At CD / DVD printing, when necessary.

When the back side of the paper is smeared.

When the platen glass, FAU lamp, or FAU protection sheet is dirty.

When the paper fed from the ASF is smeared due to ink mist attached to the ASF sub-rollers.

- Computer (automatic settings via the MP driver)

- Machine buttons

- Computer (settings via the MP driver)

To improve nozzle conditions.

-----

- Machine buttons

- Computer (settings via the MP driver)

To correct CD / DVD print position.

To clean the platen ribs.

Clean the platen glass, FAU lamp, or FAU protection sheet.

To clean the ASF sub-rollers.

Computer (application software)

- Plain paper

- Computer (settings via the MP driver)

Clean and soft cloth.

- Plain paper

- Machine buttons (paper feed roller cleaning)

[See Part 2, 5. FAQ, How to make and set the ASF sub-roller cleaning sheet, for details]

-----

Approx.

time

3 min.

1 min.

2 min.

5 min.

1 min.

*1: Only for CD / DVD printing supported regions.

1-3. Product Life

(1) Machine

Specified print volume (I) or the years of use (II), whichever comes first. (I) Print volume: 14,000 pages

(II) Years of use: 5 years of use

Print head

Black 1,500 character pattern 6,200 pages

Color

A4, 7.5% duty per color pattern 4,200 pages

A4, photo, borderless printing 300 pages

4 x 6, photo, borderless printing 2,500 pages

Postcard, photo, borderless printing 800 pages

Black 1,500 character pattern 6,200 pages

1-3

Color

A4, 7.5% duty per color pattern 4,200 pages

A4, photo, borderless printing 300 pages

4 x 6, photo, borderless printing 2,500 pages

Postcard, photo, borderless printing 800 pages

(3) Ink tank (target value)

Pattern Ink tank used Print yield

Black text PGI-5BK Approx. 800 pages

Color chart PGI-5BK Approx. 1,250 pages

Photo chart

Black text: When printing the Canon standard pattern (1,500 characters per page) on A4 size plain paper, with the default

Color chart: When printing the ISO/JIS-SCID N5 pattern on A4 size plain paper in bordered printing, with the default settings

Photo chart: When printing the Canon standard pattern on 4" x 6" Photo Paper Plus Glossy in borderless printing, with the

The print yield in the table above is an average value measured in continuous printing, using the ink tank immediately after it is unsealed, until the ink is out. Ink yield may vary depending on texts and photos printed, application software, print mode, and type of paper used.

When the machine is turned on and while printing, each ink may be used for protecting the print head and maintaining print quality.

settings in the Windows XP driver, using Word 2003.

in the Windows XP driver, using Photoshop 7.0.

default settings in the Windows XP driver, using Windows XP Photo Printing Wizard.

CLI-8Y Approx. 480 pages

CLI-8M Approx. 500 pages

CLI-8C Approx. 710 pages

CLI-8BK Approx. 1,100 pages

CLI-8Y Approx. 280 pages

CLI-8M Approx. 250 pages

CLI-8C Approx. 390 pages

1-4. Special Tools

FLOIL KG-107A

1-5. Serial Number Location

On the carriage flexible cable holder (visible on the right of the carriage after the machine is turned on, the scanning unit is opened, and the carriage moves to the center).

Name Tool No. Application Remarks

QY9-0057-000 To be applied to the sliding portions of the

carriage shaft and lift cam shaft.

In common with the S500 and S520.

1-4

To the table of contents To the top

2. LIST OF ERROR DISPLAY / INDICATION

1-5

Errors and warnings are displayed on the LCD.

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

Error

No paper (ASF). [1000]

No CD / DVD tray*1.

No paper in the front paper feed cassette.

No CD or DVD*1.

Paper jam. [1300]

Paper jam in the rear guide.

Paper jam in the under guide.

No ink. [1600]

Ink tank not installed. [1660]

The print head is not installed, or it is not properly installed.

Print head temperature sensor error

Faulty EEPROM data of the print head

Inner cover open before start of printing on paper (print continuable)*2.

Inner cover open during printing on paper (print NOT continuable)*2.

Inner cover open before start of printing on paper (print continuable)

Inner cover open during printing on paper (print NOT continuable)*1.

Inner cover closed before start of CD / DVD printing (print

Error code Message on the LCD

Auto sheet feeder.

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

[1001]

[1003]

[1002]

[1303]

[1304]

[1401]

[1403] Error code

[1405]

[1841]

[1846]

[1851]

[1856]

[1850]

There is no CD-R tray. Attach the tray and press [OK].

Cassette.

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

Printable disc is not set. Correctly place a disc in the CD-R tray and press [OK].

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

Ink has run out. Replace the ink tank and close the cover. (U041)

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

Print head is not installed. Install the print head. (U051)

Inner cover is open. Close the inner cover and press [OK].

Open the inner cover, place the CD-R tray and press [OK].

Solution

Set the paper in the ASF, and press the OK button.

Set the CD / DVD tray, and press the OK button.

Set the paper in the cassette, and press the OK button.

Set a CD or DVD in the CD / DVD tray (which is ejected at error occurrence), and inset the CD / DVD tray in the proper position. Then, 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.

Turn the machine off, and turn it on again. If the error is not cleared, the print head may be defective. Replace the print head.

Close the inner cover, and press the OK button.

Close the inner cover, and press the OK button. The paper being printed at error occurrence will be ejected without printing the remaining data for the ejected paper, then printing will resume from the next page.

Close the inner cover, and press the OK button.

Close the inner cover, and press the Stop/Reset button to clear the error. The paper being printed at error occurrence will be ejected without printing the remaining data for the ejected paper, then printing will resume from the next page.

Open the inner cover which functions as the CD / DVD tray feeder, set the CD / DVD tray in the feeder, and press the OK

continuable)*1.

1-6

Inner cover closed during CD / DVD printing (print NOT continuable)*1.

Multiple ink tanks of the same color installed.

Ink tank in a wrong position.

Warning: The waste ink absorber becomes almost full.

The connected digital camera or digital video camera does not support Camera Direct Printing.

Automatic duplex printing cannot be performed.

[1855]

[1681]

[1680]

[1700]

[2001]

[1310]

More than one ink tank of the following color is installed. (U075)

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

The waste ink absorber is almost full. Press [OK] to continue but early replacement recommended. <See manual>

Incompatible device detected. Remove the device.

This paper is not compatible with duplex printing. Remove the paper and press [OK].

button.

Open the inner cover, and press the OK

utton to clear the error. The CD or DVD being printed at error occurrence will be ejected without printing the remaining data for the ejected CD or DVD, then the next print job will be done.

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

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

Press the OK button.

The service call error, indicating the waste ink absorber is full, is likely to occur soon.

Remove the cable between the camera and the machine.

Press the OK button to eject the paper being used at error occurrence. Printing will resume from on the front side of the next page. Data which was to be printed on the back side of paper at error occurrence is skipped (not printed).

Failed in automatic print head alignment.

The remaining ink amount unknown.

Ink tank not recognized. [1684]

Ink tank not recognized.

Scanning unit (printer cover) open.

[2500]

[1683]

[1410 to 1419]

[1200]

Auto head align has failed. Press [OK] and repeat operation. <See manual>

(Applicable ink tank icon)

The remaining level of the following ink cannot be correctly detected.

(Applicable ink tank icon)

The following ink tank cannot be recognized. (U140)

(Applicable ink tank icon)

The following ink tank cannot be recognized. (U150)

Cover is open. Close the cover.

Press the OK button.

- If paper is being fed at error

occurrence, the error is indicated after the paper is ejected.

- If the error occurs, the print head

alignment values are not changed.

- After exit from the error by the

Stop/Reset button, the automatic print head alignment will not be re-done.

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

Printing with a once-empty or refilled ink tank can damage the print head.

If printing is continued without replacing the refilled ink tank, press the Stop/Reset button for 5 sec. or longer to record the use of a refilled ink tank.

Note:

After the above operation, the function to detect the remaining ink amount is disabled.

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

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

Close the scanning unit (printer cover).

*1: Only for models supporting CD / DVD printing

*2: Only for models not supporting CD / DVD printing

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

1-7

Alarm LED Lit in Orange)

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

Cycles of blinking

in orange (Alarm

LED) and green

(COPY button)

2 times Carriage error [5100] An error occurred in the carriage encoder

3 times Line feed error [6000] An error occurred in the LF encoder signal. - Timing sensor unit

4 times Purge cam

5 times

6 times

7 times Waste ink

8 times Print head

9 times EEPROM error [6800] A problem occurred in writing to the

11 times Carriage lift

12 times AP position

13 times

14 times Paper feed cam

15 times USB Host

16 times Valve sensor

17 times Motor driver

19 times Ink tank

20 times Other hardware

sensor error

ASF (cam) sensor error

Internal temperature error

absorber full

temperature rise error

mechanism error

error

Paper feed position error

sensor error

VBUS overcurrent

error

position sensor error

error

Error

code

signal.

[5C00] An error occurred in the purge unit. - Purge unit

[5700]

[5400] The internal temperature is not proper. - Logic board ass'y

[5B00] The waste ink absorber is full.

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

Conditions

(Replacement of listed parts, which

- Carriage unit

- Timing slit film

- Logic board ass'y

- Carriage motor

- Timing slit disk film

- Feed roller ass'y

- Platen unit

- Logic board ass'y

- Paper feed motor

- Logic board ass'y

- Sheet feed unit

- Ink absorber kit

[5200] The print head temperature exceeded the

specified value.

- Print head

- Logic board ass'y

EEPROM.

[5110] The carriage did not move up or down

[6A00] An error occurred in the AP motor during

[6B00] An error occurred in the paper feed motor.

properly.

purging operation.

[6B10] An error occurred in the paper feed cam sensor

[9000] The USB Host VBUS is overloaded. - Logic board ass'y

during paper feeding from the front paper feed cassette.

This error is also indicated when the waste ink counter is 60% or more, and a paper jam occurs in the under guide.

- Logic board ass'y

- PR lift shaft ass'y

- Sheet feed unit

- Logic board ass'y

- Carriage lift sensor unit

- Sheet feed unit

- Logic board ass'y

- Purge unit

- Sheet feed unit

- Logic board ass'y

- Sheet feed unit

- Logic board ass'y

[6C00] An error occurred in the valve sensor during

cleaning.

[6D00] The AD conversion value indicating the motor

driver temperature is not proper.

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

[6500] The PCI bus error is detected by the ASIC. - Logic board ass'y

- Logic board ass'y

- Purge unit

- Logic board ass'y

- Platen unit

- Logic board ass'y

Solution

are likely to be faulty)

Alarm LED lit Scanner lock

1-8

22 times

Continuous alternate blinking

Alarm LED lit RAM error [6300] The RAM error occurred in the RAM check at

error

Scanner error [5010] The scanner unit cannot detect the home

ROM error [6100] The check sum value is incorrect in the ROM

[5020] The scanner is not in the home position at

power-on. Since the error takes place assuming that the scanner lock switch is not unlocked before power-on, the Alarm LED is lit in orange and the message is displayed on the LCD (as with an operator call error), though the internal process is categorized as a service call error.

On the LCD, "Release the scanner lock switch and turn the power off and back on." is displayed.

position, or the scanner unit warming-up is not done properly at power-on.

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

check at hard-power-on.

hard-power-on.

- Turn the machine off, unlock the scanner lock switch, then turn the machine on again.

- Scanner unit

- Logic board ass'y

2-3. Other Error Messages

Message on the LCD Cause Solution

Printing is unavailable. Data received via wireless communication is not photo data.

The selected paper cannot be fed from cassette. Change the paper source.

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 value exceeds the number of copies 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"(LTR).

The received image data was invalid in infrared communication from a mobile phone.

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

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

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.

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.

The error message is displayed for a while, then the LCD automatically returns to the initial screen you see when the COPY, SCAN, PHOTO/FILM, or MEMORY CARD button is pressed.

Change the paper source to the ASF.

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

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

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

The error message is displayed for a while, then disappears.

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.

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

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

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

Settings cannot be changed when

1-9

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>

Failed to scan. Try again. The machine failed in scanning the film. No

Film scanning error. Remove FAU (Film Adapter Unit) protective sheet.

Photo scan error. Photo size is too large. Leave at least 10mm between photos.

Perform operation after the film is scanned.

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.

film was set, or selection of a film type (color or black & white, positive or negative) was wrong.

The optical volume was insufficient for scanning the film. (The FAU protective sheet was not removed, or the lamp itself was defective.)

In cropping multiple photos at the same time, since the space between the photos were not sufficient, the photos were considered as a single JPEG file, and the file became too large.

After the PHOTO/FILM button was pressed, printing was attempted from the menu without scanning photos or films.

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

Cancel printing on the digital camera.

Press the OK button to clear the error. The LCD automatically returns to the display before the error occurrence.

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

2-4. Warnings

Warning Message on the LCD Solution

Low ink The following ink is low. Continue?

Print head temperature rise

Protection of excess rise of the print head temperature

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

Recommendation of the print head alignment (only on arrival of the machine)

USB cable not connected Cancellation of trimming Reset trimming effect? With a trimmed image present, when printing on a

(Icon of each ink tank)

Yes No

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

If the print head temperature does not fall, the error code "5200" is displayed, indicating the print head temperature rise error.

and type.

Head alignment required. Load paper and press [OK].

Yes No

Connect USB cable and turn on the PC.

- 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

When the print head temperature falls, the error is automatically cleared.

Note:

If the print head temperature exceeds the specified limit when the scanning unit (printer cover) is opened, the carriage does not move to the ink tank replacement position.

If the print head temperature exceeds the specified limit, an intermission is inserted during printing.

Re-select the supported paper type and size.

- Select

=> Automatic print head alignment is done.

- Select No, and press the OK button.

=> The procedures on arrival of the machine are

Connect the USB cable.

DVD or CD is attempted, the message is displayed.

, and press the OK button.

Yes

the display immediately before printing was attempted.

, and press the OK button.

Yes

finished.

Cancellation of image

1-10

select information

Yes No - Select

=> The trimming is cancelled, and printing on a

- Select No, and press the OK button.

=> The LCD returns to the display immediately

Reset the selected photo information?

Yes No

When one or more images are selected in Multiphoto print or 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

- Select No, and press the OK button.

=> The LCD returns to the display immediately

, and press the OK button.

Yes

DVD or CD can be done.

before the message was displayed.

, and press the OK button.

Yes

menu or sub-menu is displayed.

before the message was displayed.

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

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

- Confirm the connection of

- the power cord, and

- between the logic board and the power supply unit.

- Replace the

- AC adapter, or

- logic board ass'y.

- 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.

scanner unit, and the logic board.

- Replace the

- LCD, or

- logic board ass'y.

confirm that the LCD is displayed without any segments missing.

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

- Replace the

- LCD, or

- logic board ass'y.

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

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

- Remove foreign material.

- Adjust the paper guide properly.

- Confirm the connection of each harness and the logic

- Replace the

board.

- sheet feeder unit,

- cassette, or

- logic board ass'y.

Carriage movement problems (contact to

1-11

other parts, strange noise)

Faulty scanning (no scanning, strange noise)

The FAU lamp does not light. - Confirm the connection between the scanner unit, FAU,

Unsatisfactory print quality No printing, or no color ejected. - Replace the

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

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

- Replace the

- carriage timing slit strip film, or

- carriage unit.

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

- Replace the

- scanner unit, or

- logic board ass'y.

and the logic board.

- Replace the

- document pressure plate unit (FAU), or

- logic board ass'y.

- ink tank,

- print head*1, or

- logic board ass'y.

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

- Replace the purge unit.

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. - Replace the

Printing is incorrect. Replace the logic board ass'y.

No ejection of black ink. - Replace the

Graphic or text is enlarged on printouts.

- Remove and re-install the print head.

- Replace the

- ink tank,

- print head*1,

- purge unit, or

- logic board ass'y.

- Perform bottom plate cleaning.

- Clean the paper path with cotton swab or cloth.

- Clean the ASF sub-rollers.

- ink tank, or

- print head*1.

- ink tank, or

- print head*1.

- Perform print head alignment.

- ink tank, or

- print head*1.

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

- Replace the purge unit.

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 ass'y.

When enlarged in the paper feed direction:

1-12

- Clean grease or oil off the timing slit disk film

- Replace the

- timing slit disk film,

- timing sensor unit, or

- logic board ass'y.

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

Faulty scanning

*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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logic board ass'y.

- Replace the

- scanner unit, or

- logic board ass'y.

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

- Confirm the connection between the scanner unit and the logic board ass'y.

- Replace the

- scanner unit,

- logic board ass'y, or

- sponge sheet.

3. REPAIR

1-13

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

, or (2)

Adjustment / settings Operation check

After replacement:

1. Initialize the EEPROM.

2. Set the destination in the EEPROM.

3. Reset the waste ink counter.

4. Correct the CD / DVD and automatic print head alignment sensors.

5. Check the ink system function.

6. Adjust the line feeding.

[See 3-3. Adjustment / Settings, (8) Service mode, for details of 1 to 6]

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

After replacement:

1. Reset the waste ink counter.

[See 3.3. Adjustment / Settings, (8) Service mode.]

At replacement:

1. Apply grease to the sliding portions.

-3. Adjustment /

[See 3 Settings, (2) Grease application.]

After replacement:

1. Correct the CD / DVD and automatic print head alignment sensors.

[See 3.3. Adjustment / Settings, (8) Service mode.]

2. Check the ink system function.

[See 3.3. Adjustment / Settings, (8) 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.]

At replacement:

1. Check the ink system function.

[See 3.3. Adjustment / Settings, (8) Service mode.]

At replacement:

1. Apply grease to the sliding portions.

[See 3.3. Adjustment / Settings, (2) Grease application.]

1. Apply grease to the sliding portions.

- EEPROM information print

- Service test print

- Printing via USB connection

- Copy

- Direct printing from a digital

- Service test print

- EEPROM information print

- Service test print (Confirm

- Service test print

Service part Notes on replacement

Logic board ass'y

QM2-3022

Absorber kit

QY5-0153

Carriage unit QM2-3025

Paper feed motor QK1-1502

Platen unit

QM2-3026

PR lift shaft ass'y: QL20936

Carriage lift base unit QM2-2232

- 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 waste ink amount (by service test print or EEPROM information print).

[See 3-4. Verification Items,

(1) Service test print EEPROM information print,

for details.]

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

At replacement:

camera

CD / DVD and automatic print head alignment sensor correction, and ink system function.)

[See 3.3. Adjustment / Settings,

1-14

(2) Grease application.]

Timing slit strip film

QC1-6526

Timing slit disk film

QC1-6229

Print head

QY6-0061

*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, (3) Flexible cable and harness wiring, connection, for details.]

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

- 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 red 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. DO NOT loosen the red screws on both sides of the main chassis, securing the carriage shaft positioning (they are

not adjustable in servicing)

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

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

- Do not bend the film

After replacement:

1. Perform the print head

alignment in the user mode.

After replacement:

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

- Service test print

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