Canon Pixma MP970 Service Manual. Parts Catalog

MP970

Service Manual

Revision 0

QY8-13BP-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 yo ur 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.

MP970

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) Printer unit separation from the bottom case (how to remove the screw under the purge unit)

3-3. Adjustment / Settings

(1) Paper feed motor adjustment (2) Document pressure plate sheet (sponge sheet) replacement (3) Grease application (4) Ink absorber counter setting (5) User mode (6) Service mode

A: Service mode operation B: Destination settings C: Ink absorber counter resetting D: Ink absorber counter setting E: LF / Eject correction F: Left margin correction G: Button and LCD test

3-4. Verification Items

(1) Service test print (2) Ink absorber counter value print

4. MACHINE TRANSPORTATION

MP970 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

- At logic board replacement To initialize settings None. Perform in the service mode.

- At logic board replacement To set destination. None. Perform in the service mode.

- At logic board replacement

- At ink absorber replacement

- At logic board replacement To set the ink amount data in the

- When the ink absorber

becomes full

- At paper feed motor

replacement

To reset the ink absorber counter. None.

Perform in the service mode.

None.

ink absorber to the ink absorber counter.

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.)

Perform in the service mode.

Screwdriver, a pair of tweezers, etc.

None. 5 min.

Approx.

time

1 min.

15 min.

CD / DVD detection sensor light volume

correction Automatic print

head alignment

Manual print head alignment

Grease application - At carriage unit replacement

Ink system function check

- At carriage unit replacement

- At logic board replacement

- At print head replacement

- At logic board replacement

- When print quality is not

satisfying

- At print head replacement

- At logic board replacement

- When print quality is not

satisfying

- At lift cam replacement

- To gears

- At Easy-Scroll Wheel

replacement

- At logic board replacement

- At spur base replacement

- At carriage unit replacement

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

To secure the dot placement accuracy.

To maintain sliding properties of the following items:

- Carriage shaft

- Lift cam bushing

- Machine sliding portions (gears)

- Wheel base To maintain detection

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

None. Perform in the service mode.

None. Perform in the user mode.

FLOIL KG-107A 1 min.

None. Perform in the service mode.

5 min.

4 min.

5 min.

1 min.

LCD language settings

- At logic board replacement To set the language to be

displayed on the LCD.

None. Perform in the user mode.

1 min.

Platen glass

2 / 45

protection sheet (document pressure plate sheet) position adjustment

- At protection sheet

replacement

- At protection sheet frame

replacement

- At scanner unit replacement

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

None. 1 min.

LF / Eject correction

LAN resetting - At logic board replacement To initialize the network setting None.

LAN setting information display

- At logic board replacement

- At feed roller ass'y

replacement

- At logic board replacement

- At platen unit replacement

- At confirmation of the network

setting (as needed)

To correct line feeding (LF roller diameter).

To correct line feeding (eject roller diameter).

To confirm the network setting None.

None. Perform in the service mode.

Perform in the user mode.

- Machine buttons

- Host computer (IJ

Network tool)

- WEB UI (DTV) (Japan

only)

Perform in the user mode.

- Machine buttons

- Host computer (IJ

Network tool)

- WEB UI (DTV) (Japan

only)

5 min. (LF correction and Eject correction is performed at the same time.)

1 min.

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

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

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

(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

Print head deep cleaning

Ink tank replacement

Paper feed roller cleaning

- 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. To improve nozzle

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.

To ensure accurate dot placement.

conditions.

To improve nozzle conditions.

To replace the empty ink tank.

To clean the paper feed rollers of the rear tray.

- Machine buttons

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

Approx.

time

4 min.

5 min.

1 min.

2 min.

--- 1 min.

2 min.

Rear tray subroller cleaning

Bottom plate cleaning

Scanning area cleaning

Exterior cleaning When necessary To clean the machine

LAN resetting When changing the network setting, etc. To return the LAN setting

LAN setting information display

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

When the back side of the paper is smeared. To clean the platen ribs. - Machine buttons

When the platen glass or document pressure plate sheet is dirty.

When changing the network setting, etc. To confirm the LAN

To clean the rear tray sub-rollers.

To clean the platen glass and plate sheet.

exterior

to its original state.

setting information.

- Machine buttons 1 min.

1 min.

- Computer (MP driver)

Soft, dry, and clean lint-free cloth.

None. Perform in the user mode.

- Machine buttons

- Host computer (IJ Network tool)

- WEB UI (DTV) (Japan only)

None. Perform in the user mode.

- Machine buttons

- Host computer (IJ Network tool)

- WEB UI (DTV) (Japan only)

1 min.

1-3. Special Tools

4 / 45

Name Tool No. Application Remarks

FLOIL KG-107A QY9-0057-000

To the carriage shaft sliding portions, lift cam bushing, and EasyScroll Wheel base.

In common with the MP600, etc.

1-4. 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 stops at the ink tank replacement position)

The serial number for the scanning unit: On the right side of the unit (visible on the right side when the scanning unit is opened)

<1. MAINTENANCE>

MP970 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 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/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 Error code U No. Message on the LCD Solution

o paper in the rear

tray.

o CD / DVD

tra

o CD or DVD*1.

o paper in the

cassette.

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

guide. Paper jam in the

under guide. Ink may have run

out.

Ink tank not installed.

Print head not installed, or not properly installed.

Print head temperature sensor error.

Faulty EEPROM data of the print head.

Inner cover error.

Multiple ink tanks of [1681] U071 More than one ink tank of the Replace the wrong ink tank(s) with the correct one

[1000] --- Rear tray.

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

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

tray and press [OK].

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

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

[1003] --- Cassette.

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

[1303] ---

paper and press [OK].

[1304] ---

[1600] U041 The following ink may have run

out. Replacing the ink tank is recommended.

[1660] U043 The following ink tank cannot be

recognized. (Applicable ink tank icon)

[1401] U051 Print head is not installed. Install

the print head.

[1403] U052 The type of print head is incorrect.

Install the correct print head.

[1405]

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

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

1846

[1841*2,

, 1851*1,

1856

[1850*1,

1855

]

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 the OK button.

the same color

6 / 45

following color is installed. (s).

installed. Ink tank in a wrong

position. Warning: The ink

absorber becomes almost full.

[1680] U072 Some ink tanks are not installed in

place.

[1700, 1701] --- Contact the support center or

service center for ink absorber replacement. Press [OK] to continue printing.

The connected digital camera or digital video camera does not support

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

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

Camera Direct Printing.

Automatic duplex printing cannot be performed.

Failed in automatic

rint head alignment.

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

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

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

[OK] and repeat operation. <See manual>

The remaining ink amount unknown.

[1683] U130 (Applicable ink tank icon)

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

Ink tank not recognized.

[1684] U140 The following ink tank cannot be

recognized. (Applicable ink tank icon)

Ink tank not recognized.

[1410 to 1419] U150 The following ink tank cannot be

recognized. (Applicable ink tank icon)

o ink (no raw ink). [1688] U163 The following ink has run out.

Replace the ink tank. (Applicable ink tank icon)

on-supported hub [2002] --- An unsupported USB hub is

connected. Remove the hub.

Unable to release Scanner lock switch.

[5020] --- Release the scanner lock switch

and turn the power off and back on.

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 MP610, 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/Reset 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 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 (printer cover). Printing with an empty ink tank can damage the machine. To continue printing without replacing the ink tank (s), press the Stop/Reset 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.

Unlock the scanner lock switch, turn the machine off, then turn the machine on again.

*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

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

signal.

(Replacement of listed parts,

which are likely to be faulty)

- Carriage unit

- Timing slit film

Solution

- Logic board

- Carriage motor

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

- Timing slit disk film

- Feed roller

- Logic board

- Paper feed motor

4 times Purge cam sensor error [5C00] An error occurred in the purge unit. - Purge unit

- Logic board

5 times ASF (cam) sensor error [5700] This error takes place when feeding paper

from the rear tray after an error occurred in the ASF cam sensor.

- Sheet feed unit

- ASF_PE sensor board

- Logic board 6 times Internal temperature error [5400] The internal temperature is not normal. - Logic board 7 times Ink absorber full [5B00,

5B01]

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

- Ink absorber kit

Ink absorber full. Service required.

Error codes:

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

8 times Print head temperature rise

error

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

[5200] The print head temperature exceeded the

specified value.

- Print head

- Logic board

EEPROM.

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

specified value.

- Print head

- Carriage unit

- Logic board 11 times Carriage lift mechanism

error

[5110] The carriage did not move up or down

properly.

- Sheet feed unit

- PR lift shaft ass'y

- Carriage lift sensor unit

- Logic board 12 times AP position error [6A00] An error occurred in the AP motor during

purging operation.

- Sheet feed unit

- Purge unit

- Logic board 13 times Paper feed position error [6B00] An error occurred in the paper feed motor

during line feeding.

14 times Paper feed cam sensor

error

[6B10] An error occurred in the paper fe ed ca m

sensor during paper feeding from the

- Sheet feed unit

- Logic board

- Sheet feed unit

- Logic board

cassette.

15 times USB Host VBUS

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

overcurrent

16 times Pump roller sensor error [5C20] The pump roller position cannot be

detected.

17 times Paper eject encoder error [6010] An error occurred in the paper eject

encoder signal.

- Purge unit

- Logic board

- Platen unit

- Timing sensor unit

- Timing slit disk eject film

- Paper feed motor

8 / 45

- Logic board 19 times Ink tank position sensor

error

22 times Scanner home position

error

Power LED turned off, and Alarm LED lit

ROM / RAM error --- The check sum value is incorrect in the

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

- Logic board

[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.

ROM check or RAM check at hard-poweron.

- Scanner unit

- Logic board

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.]

2-3. Other Error Messages

Message on the LCD Cause Solution

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

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

Device memory is full. Reduce the amount of photos, films, and copies to scan.

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 In Layout print, "Mixed 1, 2, or 3" which is A temporary error. The LCD automatically

The paper type being used (business card, Credit Card size paper, or stickers, etc.) 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.

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.

The memory card is not inserted in the slot properly.

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

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

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.

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.

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

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.

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

A temporary error. Specify the print quantity.

8.5"x11"(215x279). available only with A4 or Letter size paper is

9 / 45

selected, but the paper size is not set to A4 or Letter.

Cannot specify "stickers" and "halfside layout" together. Check markings on handwriting sheet.

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 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. <See manual>

Failed to scan DVD/CD handwriting sheet.

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

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 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.

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. 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. 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.

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.

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

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

This datum cannot be printed. Check the cause of the issue on the print setting screen of the TV. (Japan only)

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.

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

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

- The light volume of the film lamp was insufficient for film scanning.

- The FAU protective sheet was not removed.

- The film lamp did not turn on.

Failed in printing the contents from the digital TV broadcasting. (because the root certificate is old or the user can not access the update server, etc.)

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.

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.

Press the OK button to clear the error. If the FAU lamp does not turn on, repair servicing is required.

Confirm the connection settings. If a temporary communication error of the server causes the issue, perform printing again after a while.

2-4. Warnings

10 / 45

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

USB cable not connected

Cancellation of image select information

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

and type. Set the PC to start scan. Connect the USB cable, then turn on the computer.

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

No special solution.

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.

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

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

, and press the OK button.

Yes

menu or sub-menu is displayed.

immediately 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. - Remove foreign material.

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

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

- 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.

- 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.

LCD unit, and the logic board.

- Replace the

- operation panel unit, or

- logic board.

- Perform the button and LCD test in the service mode, and confirm that the LCD is displayed without any segments missing or flickering.

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

- Replace the

- operation panel unit, or

- logic board.

Paper feed problems (multi-feeding,

11 / 45

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.

- Set the paper properly.

- Confirm the following:

- selected paper source

- attachment of the rear cover

- connection of each harness and the logic board

- sheet feeder unit operation

- Replace the

- sheet feeder unit,

- cassette unit, or

- logic board.

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

- 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).

- Remove foreign material.

- Replace the

- carriage timing slit strip film, or

- carriage unit.

Faulty scanning (no scanning, strange noise).

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

- Replace the

- scanning unit, or

- logic board.

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

- Confirm that the reflector of the CD / DVD tray is clean and is free from any damages.

- Replace the

- CD / DVD tray, or

- logic board.

Unsatisfactory print quality No printing, or no color ejected. - Confirm that the orange tape is properly removed from an

ink tank, and the ink tanks are installed properly.

- Perform print head maintenance.

- Replace the

- ink tank,

- print head

- 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.

- Remove and re-install the print head.

- Confirm that the ink tanks are installed properly.

- Perform print head maintenance.

- Replace the

- ink tank, or

- print head

- Perform the following:

- Automatic or manual print head alignment in the user mode

- LF / Eject correction in the service mode

- Clean the paper feed rollers.

- Replace the

- purge unit, or

- logic board.

Paper gets smeared. - Feed several sheets of paper.

- Perform bottom plate cleaning.

- Clean the paper path with a cotton swab or cloth.

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- Clean the paper feed rollers.

The back side of paper gets smeared. - Clean the platen rib (clean the paper path with a cotton

swab or cloth).

- Confirm that the platen ink absorber fits in place properly.

- Confirm that the paper eject rollers are free from ink smear.

A part of a line is missing on printouts. - Perform nozzle check pattern printing, and confirm that

ink is properly ejected from all the nozzles.

- Replace the

- ink tank, or

- print head

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

- Perform print head maintenance.

- Replace the

- ink tank, or

- print head

- Perform print head alignment.

Printing is incorrect. Replace the logic board. No ejection of black ink. - Confirm that the ink tanks are installed properly.

- Perform print head maintenance.

- Replace the

- ink tank, or

- print head

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

- Replace the purge unit.

Graphic or text is enlarged on printouts.

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,

- logic board, or

- scanning unit (when copying)

When enlarged in the paper feed direction:

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

- Replace the

- timing slit disk film,

- timing slit disk eject film,

- timing sensor unit,

- LF roller,

- platen unit,

- logic board, or

- scanning unit (when copying)

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

the logic board.

- Replace the

- scanning unit, or

- logic board.

- Confirm that the driver software is installed properly.

- Confirm that the USB cable is connected properly.

- Confirm the light of the FAU lamp.

Streaks or smears on the scanned image.

- Clean the platen glass.

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

- Replace the

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- scanning unit,

- logic board, or

- document pressure plate sheet.

Streaks or smears on the image scanned from film, or no image at all.

Network connection No printing. 1) Confirm if the nozzle check pattern is printed using the

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

- Clean the platen glass and the FAU lamp.

- Replace the

- logic board, or

- scanning unit.

- Confirm the status of the film adapter unit and replace the unit.

- Confirm the light of the FAU lamp and replace the document pressure plate unit (FAU).

machine buttons or from the computer (USB connection).

2) Confirm the network setting information

3) When printing can not be performed even after 1) and

2), replace the logic board. <The logic board (the main PCB, not NIC) contains Network function.>

<2. LIST OF ERROR DISPLAY / INDICATION>

MP970 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

Absorber kit

Notes on replacement

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 for details.]

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. [See 3-3. Adjustment /

Settings, (6) Service mode,

for details of 1 to 7.]

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

9. Reset the LAN settings.

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)

- Reset the LAN settings

- Confirm the LAN setting information

- Confirm the MAC address

(EEPROM information print)

- Ink absorber counter print

(Performed automatically after

resetting the ink absorber counter.)

Carriage unit

Paper feed motor - The red screws securing the

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

Platen unit

At replacement:

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

Settings, (3) Grease application.]

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

Settings, (6) Service mode,

for details.]

3. 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. Check the ink system function.

2. Perform LF / Eject correction. [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.)

- Service test print

PR lift shaft ass'y

At replacement:

1. Apply grease to the sliding

- Service test print

Input carriage lift gear portions.

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Easy-Scroll Wheel base

[See 3-3. Adjustment /

Settings, (3) Grease application, for details.]

Document pressure plate unit

Document pressure plate sheet

Document pressure plate sheet frame

Scanner unit

Operation panel board ass'y

LCD viewer unit

Timing slit strip film - Upon contact with the film,

Timing slit disk film

Timing slit disk eject film

- Be cautious not to scratch or damage the LCD hinge FFC.

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

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

2. Check the LCD and operation panel. [See 3-3. Adjustment /

Settings, (6) Service mode,

for details.]

At replacement:

1. Check the LCD and operation panel. [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

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 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 MP610 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).

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)

After replacement:

1. Perform print head alignment in the user mode.

<3-1. Notes on Service Part Replacement>

- Service test print

MP970 TABLE OF CONTENTS

16 / 45

3-2. Special Notes on Repair Servicing

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

(Click on the image to enlarge it.)

(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 (4 screws). <While slightly pulling up the back of the scanner unit, remove the side cover R. The side cover R holds the scanner unit hinge.> <Be cautious not to damage the LED guide and the card board (LED part)> (See How to remove the side cover R.)

How to remove the side cover R

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1. Basic idea

2) Slide the cover horizontally.

1) Move 2.5mm upward

2. Details (The scanner, front door, and cassette are not described to provide a better

2-1. Disengage the back side part of the side cover R

1) Slightly lift the back side part (circled in red in the picture below) of the side cover R.

2) Slide the back side part to the outside direction.

B: Release this part from the bottom case.

A: Release this part from the boss on the main case.

C: Release this part from the main frame.

After finishing all three, proceed to 2-2.

2-2. Disengage the upper front part of the side cover R (circled in red in the pictures below)

Push this part to the arrowindicated direction.

Enlarged view of the boss.

Confirm that the side cover is removed from the boss on the main case.

2-3. Disengage the lower front part of the side cover R (circled in red in the picture below)

When releasing the claw of the side cover from the bottom case, gently push this area outward to prevent the side cover from going back to sit on the boss on the main case.

1) Pull out the lower front of the side cover in the arrow-indicated direction.

2) Unlatch the claw of the side cover, then put the claw on the boss on the bottom case.

3) Confirm that the claw is completely unlatched.

2-4.Remove the side cover R

1) Hold the side cover R and slightly lift the front part of the cover.

When removing the side cover R, gently push this area outward to prevent the cover from going back to sit on the bosses.

2) Remove the cover by sliding it horizontally.

3) Released this part from the bottom case.

3) Remove the document cover (document pressure plate unit).

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4) Remove the side cover L (4 screws). <The side cover L holds the scanner unit hinge.> <Since the pressure from the scanner lock arm spring is in the upward direction, hold the scanner unit while removing the side cover.>

5) Remove the scanner unit.

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Photo up: Scanner unit

6) Remove the main case unit. <Release the 4 claws, and pull up the main case (no screws).>

Photo down: The claw of the main case (on the upper side

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of the card board). View from the above.

Photo down: View from the bottom side.

(2) Operation panel removal

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1) Remove the FAU protective sheet, then remove the screws from the bottom of the document cover (8 screws). <Remove the top cover from the base, while exercising caution not to break the claws.>

2) Remove the panel frame from the bottom cover (5 screws - one screw fastens the panel harness ground wire to the chassis). <The FFC core is fixed to the unit with filament tape, as shown in the photo.>

3) Remove the LCD and panel board from the panel frame.

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4) Remove the Easy-Scroll Wheel from the panel board.

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<Be cautious not to touch the grease between the wheel and the wheel base.> See 3-3. Adjustment / Settings, (3) Grease application.

(3) Cable wiring and connection

1) Wiring on the right side <The cables are fit in the bottom case> <Be cautious of the position of the screw that fixes the ground wire. The ground wire passes through the same cores as the card harness.>

2) Seen from the back side of the machine (Notice the DC

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harness position.)

(4) Emblem removal

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

3) Right side of the machine (AC adapter and bottom case removed)

(5) Printer unit separation from the bottom case (how to remove the screw under the purge unit)

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1) Rotate the purge unit gear toward the rear side of the machine to unlock the carriage.

2) Slide the carriage to the opposite of the home position (to the left).

3) Remove the screw.

<3-2. Special Notes on Repair Servicing>

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