Canon Pixma MP630, Pixma MP638 Service Manual. Parts Catalog

MP630 / MP638 Service Manual

Revision 0

QY8-13CB-000

COPYRIGHTc2008 CANON INC. CANON MP630 072008 XX 0.00-0

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.

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

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.

MP630 / MP638

TABLE OF CONTENTS

1. MAINTENANCE

1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer

1-2. Customer Maintenance

1-3. Special Tools

1-4. 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

3-2. Special Notes on Repair Servicing

(1) External housing, scanner unit, and document cover removal

(2) Operation panel removal

(3) Cable wiring and connection

(4) Emblem removal

(5) Carriage unlocking, and ink absorber replacement

(6) ASF unit removal

(7) Carriage unit removal

(8) Spur unit and platen unit removal

(9) Purge drive system unit (right plate) and switch system unit (left plate) removal

3-3. Adjustment / Settings

(1) Paper feed motor adjustment

(2) Document pressure sheet (sponge sheet) replacement

(3) Grease application

(4) Ink absorber counter setting

(5) User mode

(6) Service mode

A: Service mode operation

B: LF / Eject correction

C: Button and LCD test

D: Ink absorber counter setting

3-4. Verification After Repair

(1) Standard inspection flow

(2) Service test print

(3) Ink absorber counter value print

4. MACHINE TRANSPORTATION

MP630 / MP638 TABLE OF CONTENTS

1 / 45

1. MAINTENANCE

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)

Ink absorber replacement

Paper feed motor position adjustment

CD / DVD detection sensor light volume

correction

Automatic print head alignment

- At logic board replacement To initialize settings

- At logic board replacement To set destination.

- At logic board replacement

To reset the ink absorber counter.

- At ink absorber replacement

- At logic board replacement To set the ink amount data in the ink absorber to the ink absorber counter.

- When the ink absorber

becomes full

- At paper feed motor

replacement

To replace the ink absorber with a new one.

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

- At carriage unit replacement

- At logic board replacement

- At print head replacement

- At logic board replacement

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

To secure the dot placement accuracy.

- When print quality is not

satisfying

Approx.

time

Service Tool

1 min. Perform in the service mode.

Service Tool

1 min. Perform in the service mode.

Service Tool

1 min. Perform in the service mode.

Service Tool

1 min. Perform in the service mode.

Screwdriver, a pair of

15 min. tweezers, etc.

None. 5 min.

Service Tool

5 min. Perform in the service mode.

None. Perform in the user mode.

7 min.

(Use MP-

101.)

Manual print head alignment

- At print head replacement

- At logic board replacement

- When print quality is not satisfying

Grease application - At carriage unit replacement

Ink system function check

LCD language settings

Platen glass protection sheet (document pressure sheet) position

- At Easy-Scroll Wheel replacement

- At logic board replacement

- At spur unit replacement

- At carriage unit replacement

- At logic board replacement To set the language to be

- At protection sheet replacement

- At document bottom cover replacement

- At scanner unit replacement

adjustment

LF / Eject correction - At logic board replacement

- At paper feed roller replacement

To secure the dot placement accuracy.

To maintain sliding properties of the following items:

- Carriage rail

- Wheel base

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

displayed on the LCD.

To maintain scanning accuracy, hold the sheet with the long side down, then fit its upper left corner to the platen glass reference mark (back left).

To correct line feeding (LF roller diameter).

None.

10 min.

Perform in the user mode.

FLOIL KG-107A 1 min.

Service Tool

1 min. Perform in the service mode.

None.

1 min. Perform in the user mode.

None. 1 min.

Service Tool

Perform in the service mode.

5 min.

(LF

correction

2 / 45

- At logic board replacement

- At platen unit replacement

To correct line feeding (eject roller diameter).

Service Tool Perform in the service

mode.

and Eject

correction is

performed

at the same

time.)

Carriage rail position adjustment

N: New adjustment item

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

*2: New Service Tool that operates only on a pre-registered computer.

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

- For the automatic print head alignment, use Matte Photo Paper (MP-101), which is packed with the machine before shipment. If Matte Photo Paper (MP-101) is not available, perform manual print head alignment using plain paper.

- At carriage unit replacement

- At carriage unit removal

To set the carriage rail to the original position prior to removal or replacement of the carriage unit, put a mark on the main chassis before removal of the carriage unit.

(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.

None. 1 min.

(4) Replacement consumables

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

1-2. Customer Maintenance

3 / 45

Adjustment Timing Purpose Tool

Automatic print head alignment

Manual print head alignment

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

Print head deep cleaning

Ink tank replacement

Paper feed roller cleaning

Bottom plate cleaning

Scanning area cleaning

Exterior cleaning When necessary To clean the machine exterior,

- At print head replacement

- When print quality is not satisfying (uneven printing, etc.)

- At print head replacement

- When print quality is not satisfying (uneven printing, etc.)

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.

- When the front side of the paper is smeared.

When the back side of the paper is smeared. To clean the platen ribs. (Feed

When the platen glass or document pressure sheet is dirty.

To ensure accurate dot placement.

To improve nozzle conditions. - Machine

To replace the empty ink tank. --- 1 min.

To clean the paper feed rollers of the selected paper source (rear tray or cassette).

the paper from the rear tray.)

To clean the platen glass and pressure sheet.

or to wipe off dusts.

- Machine buttons

- Matte Photo Paper (MP-

101)

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

buttons

- Computer (MP driver)

buttons

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

Soft, dry, and clean lint-free cloth.

Approx.

time

7 min. (Use MP-101.)

10 min.

1 min.

2 min.

1 min.

1-3. Special Tools

4 / 45

Name Tool No. Application Remarks

FLOIL KG-107A QY9-0057-000 To the carriage rail sliding portions, and Easy-Scroll Wheel base. In common with the MP610, etc.

1-4. Serial Number Location

On the inner guide over the upper portion of the spur holder (visible when the scanning unit (cover) is opened)

When the machine power is OFF.

When the machine power is ON.

<1. MAINTENANCE>

MP630 / MP638 TABLE OF CONTENTS

5 / 45

2. LIST OF ERROR DISPLAY / INDICATION

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 (the latest 10 error codes at the maximum) are printed in the "operator call/service call error record" area in EEPROM

information print

Buttons valid when an operator call error occurs:

1. ON 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 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 rear tray. [1000] --- Rear tray.

No CD / DVD tray*1.

No CD or DVD*1.

No paper in the cassette. [1003] --- Cassette.

Paper jam. [1300] --- The paper is jammed. Clear the paper

Paper jam in the rear guide.

Paper jam in the under guide.

Ink may have run out. [1600] U041 The following ink may have run out.

Ink tank not installed. [1660] U043 The following ink tank cannot be

Print head not installed, or not properly installed.

Faulty print head ID. U052 The type of print head is incorrect.

Print head temperature sensor error.

Faulty EEPROM data of the print head.

Inner cover error.

Error code

[1001] --- There is no CD-R tray. Attach the tray

[1002] --- Printable disc is not set. Correctly place

[1303] ---

[1304] ---

[1401] U051 Print head is not installed. Install the

[1403]

[1405]

[1841*2,

1846 1851 1856

[1850*1,

1855

U No.

--- Inner cover is open. Close the inner

]

--- Open the inner cover, place the CD-R

]

Message on the LCD Solution

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

and press [OK].

a disc in the CD-R tray and press [OK].

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

and press [OK].

Replacing the ink tank is recommended.

recognized. (Applicable ink tank icon)

print head.

Install the correct print head.

cover and press [OK].

tray and press [OK].

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

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

Set a CD or DVD in the CD / DVD tray, and inset the CD / DVD tray in the proper position. Then, press the OK button.

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

Remove the jammed paper, and press the OK button.

Replace the applicable ink tank, or press the OK button to clear the error without ink tank replacement. When the error is cleared by pressing the OK button, 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.

Close the inner cover, and press the OK button.

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

Multiple ink tanks of the

6 / 45

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.

Automatic duplex printing cannot be performed.

Failed in automatic print head alignment.

The remaining ink amount unknown.

Ink tank not recognized. [1684] U140 The following ink tank cannot be

Ink tank not recognized. [1410 to

No ink (no raw ink). [1688] U163 Printer detected ink out condition of the

Non-supported hub [2002] --- An unsupported USB hub is connected.

Time-out in CD / DVD print operation.

Time-out for the scanner device

[1681] U071 More than one ink tank of the following

color is installed.

[1680] U072 Some ink tanks are not installed in

place.

[1700,

1701]

[2001] --- The device may be incompatible.

[1310] --- This paper is not compatible with

[2500] --- Auto head align has failed. Press [OK]

[1683] U130 (Applicable ink tank icon)

1419]

[1830*1]

[2700] --- Timeout error has occurred. Press [OK]. The buffer became full in the middle of scanning

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

Remove the device and check the manual supplied with the connected device.

duplex printing. Remove the paper and press [OK].

and repeat operation. <See manual>

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

recognized. (Applicable ink tank icon)

U150 The following ink tank cannot be

recognized. (Applicable ink tank icon)

following ink. Replace the ink tank. (Applicable ink tank icon)

Remove the hub.

--- Timeout error has occurred. Press [OK]. A prescribed period of time (12 minutes) has elapsed

the OK button.

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.

The paper length is not supported for duplex printing. Press the OK button to eject the paper being used at error occurrence. Data which was to be printed on the back side of paper at error occurrence is skipped (not printed).

Press the OK button to clear the error, then perform the automatic print head again. (In the MP630 / MP638, use Matte Photo Paper MP-101.)

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

A non-supported ink tank (an ink tank that is sold in a different region from where the machine was purchased) 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).

Replace the empty ink tank(s), and close the scanning unit (cover). Printing with an empty ink tank can damage the machine. To continue printing without replacing the ink tank(s), press the Stop button for 5 sec. or longer to disable the function to detect the remaining ink amount. After the operation, it is recorded in the machine that the function to detect the remaining ink amount was disabled.

Remove the applicable USB hub from the PictBridge (USB) connector.

without any printing since printing was attempted. Press the OK button to clear the error.

operation, and 60 minutes have elapsed since then, making re-scanning unstable. Press the OK button to clear the error.

*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 of Alarm and Power LEDs)

7 / 45

Service call errors are indicated by the number of cycles the Alarm and Power LEDs blink, and the corresponding error code with the

message,

"Printer error has occurred. Turn off power then back on again. If problem persists, see the manual." is displayed on the LCD.

Cycles of

blinking of

Alarm and

Power LEDs

Error

Error code

Conditions

(Check points and replacement items)

Solution

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

encoder signal.

3 times Line feed error [6000] An error occurred in the LF encoder

signal.

(1) Smearing or scratches on the carriage slit

film;

clean the timing slit film.

(2) Foreign material or paper debris that

obstructs the carriage movement;

remove foreign material.

(3) Ink tank conditions;

re-set the ink tanks. (4) Cable connection (5) Part replacement:

- Timing slit disk film

- Carriage unit

- Logic board

- Carriage motor

(1) Smearing or scratches on the LF / EJ slit film;

clean the LF / EJ slit film. (2) Foreign material or paper debris in the LF

drive; remove foreign material. (3) Cable connection (4) Part replacement:

- LF / EJ slit film

- LF / EJ timing sensor unit

- Paper feed roller unit

- Logic board

- Paper feed motor

4 times Purge cam sensor

error

5 times ASF (cam) sensor

error

6 times Internal temperature

error

7 times Ink absorber full [5B00,

[5C00] An error occurred in the purge unit. (1) Foreign material or paper debris around the

[5700] An error occurred in the ASF cam

[5400] The internal temperature is not

5B01]

sensor.

normal.

The ink absorber is supposed to be full. Message on the LCD:

Ink absorber full. Service required.

Error codes:

5B00: Main ink absorber is full (overseas). 5B01: Main ink absorber is full

purge drive system unit;

remove foreign material. (2) Cable connection (3) Part replacement:

- Purge drive system unit

- Logic board

(1) Cable connection (2) Part replacement:

- ASF unit

- PE sensor board unit

- Logic board

(1) Cable connection (2) Part replacement:

- Carriage unit

- Logic board

- Print head

(1) Ink absorber condition (2) Part replacement:

- Ink absorber kit

(3) Ink absorber counter value in the EEPROM;

reset the ink absorber counter.

(Japan).

8 / 45

8 times Print head

temperature rise error

9 times EEPROM error [6800,

10 times VH monitor error [B200] The internal temperature exceeded

11 times Carriage lift

mechanism error

12 times APP position error [6A80] An error occurred in the APP motor. (1) Foreign material or paper debris around the

14 times APP sensor error [6A90] An error occurred during paper

[5200] The print head temperature exceeded

the specified value.

A problem occurred in reading from

6B01]

[5110] The carriage did not move up or

or writing to the EEPROM.

the specified value.

down properly.

feeding or paper ejection.

(1) Print head condition (2) Cable connection (3) Part replacement:

- Print head

- Logic board

(1) Part replacement:

- Logic board

(1) Part replacement:

- Print head and logic board (Replace them at the same time.)

- Power supply unit

(1) Foreign material or paper debris that

obstructs the carriage movement;

remove foreign material.

(2) Part replacement:

- Switch system unit

- Carriage unit

purge drive system unit;

remove foreign material.

(2) Foreign material or paper debris around the

ASF unit;

remove foreign material. (3) Cable connection (4) Part replacement:

- Purge drive system unit

- Logic board

Paper feed cam sensor error

15 times USB Host VBUS

overcurrent

16 times Pump roller sensor

error

17 times Paper eject encoder

error

[6B10] An error occurred in the paper feed

cam sensor during paper feeding from the cassette, or the paper absorbing a large amount of ink jammed in the PF rear guide.

[9000] The USB Host VBUS is overloaded. (1) Part replacement:

[5C20] The pump roller position cannot be

detected.

[6010] An error occurred in the paper eject

encoder signal.

(1) Jammed paper in the PF rear guide (when a

large amount of ink was absorbed in the paper);

remove the jammed paper and foreign

material. (2) Foreign material or paper debris in the

cassette or in the PF rear guide;

remove foreign material. (3) Part replacement:

- PF pick-up unit

- Logic board

(1) Cable connection (2) Part replacement:

- Purge drive system unit

(1) Smearing or scratches on the LF / EJ slit film;

clean the LF / EJ slit film. (2) Foreign material or paper debris in the paper

path;

remove foreign material. (3) Cable connection (4) Part replacement:

- LF / EJ slit film

- LF / EJ timing sensor unit

- Platen unit

- Logic board

- Paper feed motor

19 times Ink tank position

sensor error

[6502] None of the ink tank position is

detected.

(1) Ink tank position;

confirm the ink tank position. (2) Re-set or replacement of ink tanks (3) Cable connection (4) Part replacement:

- Spur unit

9 / 45

- Logic board

20 times Other errors [6500] An unidentified error occurred. (1) Part replacement:

- Logic board

21 times Drive switch error [C000] Drive was not switched properly. (1) Foreign material or paper debris in the drive

switch area;

remove foreign material. (2) Part replacement:

- Purge drive system unit

- ASF unit

22 times Scanner error [5011] An error occurred in the scanner. (1) Document pressure sheet conditions

(2) Cable connection (3) Part replacement:

- Document pressure sheet (sponge sheet)

- Scanner unit

- Logic board

Flatbed motor error [5012] An error occurred in the scanner

Scanner electric circuit error

23 times Valve cam sensor

error

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 when replacing the logic board ass'y. If the counter value is less than 7%, register the current ink absorber counter value to the replaced new logic board instead.

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

(1) Cable connection

flatbed motor.

[5050] The AFE was faulty. (1) Cable connection

[6C10] The valve cam sensor was faulty at

power-on or when purging was attempted.

(2) Part replacement:

- Scanner unit

(2) Part replacement:

- Scanner unit

(1) Foreign material or paper debris around the

purge drive system unit;

remove foreign material. (2) Cable connection (3) Part replacement:

- Purge drive system unit

- Logic board

2-3. Other Error Messages

10 / 45

Message on the LCD Cause Solution

The selected paper cannot be fed from cassette. Change the paper source and press [OK].

Cannot apply the following setting(s). Change the setting(s).

Device memory is full. Cannot continue process. Reduce the number of documents (photos, etc.) to scan or copy.

Press [Color]. The Black button was pressed, but it is invalid. A temporary error. Press the Color button to

Press [Black]. The Color button was pressed, but it is invalid. A temporary error. Press the Black button to

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 cassette.

Settings made conflict each other. (e.g. Selecting borderless printing on plain paper)

The memory is not sufficient to do the print job in copying.

card.

Change the paper source to the rear tray.

Change the settings so that they will not conflict each other.

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

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.

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

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. DPOF print was selected in the menu, but no

The number of copies to print is not set. Input the number of copies using [+]/[].

This layout is available only for A4 or

8.5"x11"(215x279).

Cannot specify "stickers" and "half-side layout" together. Check markings on handwriting sheet.

Cannot print via wireless communication.

- No photo data

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

The memory card is not inserted in the slot properly.

DPOF files are contained in the memory card.

Printing was attempted with the print quantity left "0" (zero).

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

The selected layout on the handwriting sheet is not supported for Stickers.

The received data via infrared communication is not image data.

A temporary error. The last operation before the error is cancelled, and the total print quantity returns to the value before the error.

Set a memory card properly.

A temporary error. The LCD automatically returns to the display before the error occurrence.

A temporary error. Specify the print quantity.

A temporary error. The LCD automatically returns to the display before the error occurrence.

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

A temporary error. The LCD automatically returns to the display before the error occurrence.

- Unsupported photo data

- Photo data too large

Change the setting after removing the card.

The card is currently writable from PC. Set to [Not writable from PC].

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

With the memory card set to "Writable from PC," Card Direct printing operation was

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,

attempted from the menu. then perform Card Direct printing.

11 / 45

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

Failed to scan Photo Index Sheet. Check orientation and position, and make sure platen and sheet are clean. <See manual>

Failed to scan handwriting sheet. Check orientation and position, and make sure platen and sheet are clean.

Failed to scan DVD/CD handwriting sheet.

Check orientation and position, and make sure platen and sheet are clean.

Failed to scan Photo Index Sheet. Check for missed and improper markings.

Failed to scan handwriting sheet. Check for missed and improper markings.

Failed to scan DVD/CD handwriting sheet. Check for missed and improper markings.

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

The machine failed in scanning the Photo Index Sheet.

The machine failed in scanning the handwritten Photo Index Sheet.

The machine failed in scanning the handwritten DVD / CD sheet.

The machine scanned the Photo Index Sheet, but markings in the sheet were incorrect.

The machine scanned the handwritten Photo Index Sheet, but markings in the sheet were incorrect.

The machine scanned the DVD/CD handwritten sheet, but markings in the sheet was incorrect.

Cancel printing on the digital camera. Confirm the paper size, and 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.

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

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

- Place the sheet in the correct orientation and position.

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

Cover is open. Close cover. The cover was opened during printing. Close the cover. The LCD returns to the

Scanner is not operating correctly. The CIS cannot detect the home position, or

The machine failed in scanning the document for Fit-to-page copy.

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

Press the OK button to clear the error. Correct the settings, then try the operation again.

display before the error occurrence.

Press the OK button to clear the error, and turn the machine off and on again. If the error still occurs, repair servicing is required.

2-4. Warnings

Warning Message on the LCD Solution

Low ink "!" is indicated for an applicable ink tank icon in the

Status Monitor.

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 and

If the print head temperature does not fall, the print head error will occur.

type.

Since the ink will be used up soon, prepare for a new ink tank.

When the print head temperature falls, the error is automatically cleared. If the print head error is indicated, repair servicing is required.

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

Re-select the supported paper type and size.

USB cable not connected Set the PC to start scan. Connect the USB cable, then turn on the computer.

Cancellation of image select information

Reset the selected photo information? Yes No

Do you want to clear the image scanned from the photo? Yes No

Do you want to clear the scanned image and rescan? Yes No

- 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

menu or sub-menu is displayed.

before the message was displayed.

2-5. Troubleshooting by Symptom

12 / 45

Symptom Solution

Faulty operation The power does not turn on.

The power turns off immediately after power-on.

A strange noise occurs. (1) Examine and remove any foreign material or paper debris.

The LCD does not display properly. A portion of the LCD is not displayed. The display flickers.

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

(1) Confirm connection of the power supply unit:

- Harness and connector conditions

(2) Replace the following item(s):

- Logic board

- Power supply unit

- Panel board

(2) Replace the following item(s):

- The part generating the strange noise

- Logic board

(1) Confirm cable connection (LCD FCC and panel harness):

- Harness and connector conditions

- No cable breakage, etc.

(2) Replace the following item(s):

- LCD FFC

- LCD viewer unit

- Panel board

- Logic board

(1) Examine and remove any foreign material or paper debris. (2) Confirm the PF rear cover and the cassette conditions. (3) Confirm cable connection. (4) Replace the following item(s):

- ASF unit (for paper feeding error from the rear tray)

- PF pick-up unit (for paper feeding error from the cassette)

- PE sensor board

- Pressure roller unit

- Cassette unit

Faulty scanning (no scanning, strange noise).

The CD / DVD tray is not pulled in the feeder.

Unsatisfactory print quality No printing, or no color ejected.

Faint printing, or white lines on printouts. Uneven printing. Improper color hue.

(1) Confirm cable connection (scanner motor cable and CIS

FFC).:

- Harness and connector conditions

- No cable breakage, etc.

(2) Replace the following item(s):

- Scanner unit

- Logic board

(1) Confirm the reflector of the back of the CD / DVD tray:

- Cleaning of the reflector.

(2) Replace the following item(s):

- Logic board

- CD / DVD tray

(1) Confirm the ink tank conditions:

- Confirmation of the air-through of an ink tank (proper removal of the orange tape)

- Re-setting of an ink tank

(2) Remove foreign material from the purge unit caps, if any. (3) Perform cleaning or deep cleaning of the print head. (4) Perform print head alignment. (5) Replace the following item(s):

- Print head

- Logic board

- Purge drive system unit

, and ink tanks

Paper gets smeared. (1) Clean the inside of the machine.

(2) Perform bottom plate cleaning. (3) Perform paper feed roller cleaning.

The back side of paper gets smeared. (1) Clean the inside of the machine.

(2) Perform cleaning or deep cleaning of the print head. (3) Examine the platen ink absorber. (4) Examine the paper eject roller. (5) Replace the following item(s):

- The part in the paper path causing the smearing

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Faulty scanning

Graphic or text is enlarged on printouts in the carriage movement direction.

Graphic or text is enlarged on printouts in the paper feed direction.

No scanning. (1) Replace the following item(s):

Streaks or smears on the scanned image. (1) Clean the platen glass and the document pressure sheet.

(1) Confirm that the carriage slit film is free from smearing or

scratches:

- Cleaning of the timing slit film.

(2) Replace the following item(s):

- Timing slit film

- Carriage unit

- Logic board

- Scanner unit (for copying)

(1) Confirm that the LF / EJ slit film is free from smearing or

scratches:

- Cleaning of the LF / EJ slit film..

(2) Replace the following item(s):

- LF / EJ slit film

- LF / EJ timing sensor unit

- Platen unit

- Logic board

- Scanner unit (for copying)

- Scanner unit

- Logic board

(2) Confirm the position of the document pressure sheet. (3) Replace the following item(s):

- Scanner unit

- Document pressure sheet

- Logic board

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

<2. LIST OF ERROR DISPLAY / INDICATION>

MP630 / MP638 TABLE OF CONTENTS

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3. REPAIR

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

Service part

Logic board ass'y - Before removal of the logic board

Absorber kit

Notes on replacement

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).

Adjustment / settings Operation check

After replacement:

1. Initialize the EEPROM.

2. Set the ink absorber counter value.

3. Set the destination in the EEPROM.

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

5. Check the ink system function.

6. Perform LF / Eject correction.

7. Perform button and LCD test. Perform 1 to 7 in the service mode. [See 3-3. Adjustment / Settings,

(6) Service mode, for details.]

8. Perform print head alignment and LCD language setting in the user mode.

After replacement:

1. Reset the ink absorber counter. [See 3-3. Adjustment / Settings,

(6) Service mode, for details.]

- EEPROM information print

- Service test print

- Printing via USB connection

- Copying

- Direct printing from a digital camera (PictBridge)

- Ink absorber counter volume print (After the ink absorber counter is reset, the counter value is printed automatically.)

Carriage unit

Switch system unit - The red screws securing the paper

feed motor are allowed to be

Paper feed motor

Platen unit

loosened only for paper feed motor replacement. (DO NOT loosen them in any other cases.)

At replacement:

1. Before removal of the carriage rail, mark the carriage rail position. [See 3-2. Special Notes on

Repair Servicing, (7) Carriage unit removal, for details.]

2. Apply grease to the sliding portions of the carriage rail. [See 3-3. Adjustment / Settings,

(3) Grease application, for

details.]

3. Check the ink system function. [See 3-3. Adjustment / Settings,

(6) Service mode, for details.]

4. Perform 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,

for details.]

After replacement:

1. Perform LF / Eject correction in the service mode. [See 3-3. Adjustment / Settings,

(6) Service mode, for details.]

- Service test print (Confirm CD / DVD and automatic print head alignment sensor correction, and ink system function.)

- EEPROM information print

- Service test print

- EEPROM information print

- Service test print

Spur unit - DO NOT contact the spur edges.

After replacement:

1. Check the ink system function.

2. Perform LF / Eject correction in the service mode. [See 3-3. Adjustment / Settings,

- EEPROM information print

- Service test print

(6) Service mode, for details.]

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Purge drive system unit

Carriage rail and main chassis

Idler pulley parallel pin

Easy-Scroll Wheel base

APP code wheel gear shaft

Document pressure sheet

Document bottom cover

Scanner unit

Panel board ass'y - Be cautious not to scratch or

LCD viewer unit

Timing slit strip film - Upon contact with the film, wipe

Timing slit disk feed film

Timing slit disk eject film

damage the LCD cable.

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. Confirm the purging operation and the machine operation. [See 3-4. Verification After

Repair for details.]

At replacement:

1. Apply grease to the sliding portions. [See 3-3. Adjustment / Settings,

(3) Grease application, for

details.]

After replacement:

1. Confirm the document pressure plate sheet position. [See 3-3. Adjustment / Settings,

(2) Document pressure sheet replacement, for details.]

At replacement:

1. Perform button and LCD test. [See 3-3. Adjustment / Settings,

(6) Service mode, for details.]

After replacement:

1. Perform print head alignment in the user mode.

2. Perform LF / Eject correction in the service mode. [See 3-3. Adjustment / Settings,

(6) Service mode, for details.]

- Service test print

- EEPROM information print

- Service test print

Print head

*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 the Parts Catalog 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, timing slit disk feed film, and timing slit disk eject film. No grease or abrasion is

allowed.

- Protect the units from soiled with ink.

- Protect the housing from scratches.

- For the MP630 / MP638 automatic print head alignment, use Matte Photo Paper (MP-101) to ensure alignment accuracy.

- Exercise caution with the 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).

After replacement:

1. Perform print head alignment in the user mode.

- Service test print

ii. Before loosening the 3 screws that fix the carriage rail to the main chassis, mark the screw positions so that the

carriage rail will be re-attached to the main chassis in its original position.

<3-1. Notes on Service Part Replacement>

MP630 / MP638 --- 3. REPAIR TABLE OF CONTENTS

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3-2. Special Notes on Repair Servicing (Click on the image to enlarge it.)

Be sure to protect the machine from static electricity in repair servicing, especially for the LCD, operation panel board, scanner unit, logic

board, card board, IrDA board, and PE sensor board.

(1) External housing, scanner unit, and document cover removal

1) Remove the cassette.

2) Open the front door and scanner unit, then remove the side cover R (2 screws). <The scanner unit hinges are fitted in the right and left side covers.>

3) Remove the scanner cable, panel cable, FB encoder cable, and core.

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4) Remove the side cover L, scanner unit, then document pressure plate unit (2 screws). <While holding the scanner unit, remove the side cover L, then disengage the scanner unit from the scanner support arm.>

5) Remove the main case and sub-case.

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(2) Operation panel removal

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1) Separate the document pressure plate from the scanner unit. <While pushing the hinge edge inward, pull the plate upward to separate it from the scanner unit.> <Remove the panel cable from the scanner unit. It will make it easier if the cable core is removed first.>

2) Remove the panel cover. <Insert a pair of tweezers through into the hole in the bottom of the document pressure plate, and push the panel cover to release it from the plate base.>

3) Remove the top cover from the base (9 screws). <There are 2 claws at the center of the top cover where the document pressure sheet (sponge sheet) is attached..>

4) Remove the operation panel unit from the base (4 screws).

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5) Remove the panel board (10 screws).

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6) Remove the Easy-Scroll Wheel from the panel board. <Be cautious not to touch the grease between the wheel base and the wheel.> See 3-3. Adjustment / Settings, (3) Grease application.

(3) Cable wiring and connection

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1) Wiring on the right side

2) Wiring of the ink sensor cable and the inner cover open sensor cable

3) Wiring on the left side. Hook the ground cable on the side of the bottom case.

(4) Emblem removal

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Push the emblem bottom to remove from the double-sided adhesive tape.

(5) Carriage unlocking, and ink absorber replacement

1) Rotate the drive unit gear toward the back of the machine to unlock the carriage. Slide the carriage to the left (the opposite of the home position).

(6) ASF unit removal

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1) Remove 1 screw from the left plate, and 2 screws from the right plate.

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