Canon PIXMA MP950 User manual

PIXMA MP950
SERVICE
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 byAuthorized 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.
Copyright
All rights reserved. No parts of this manual may be reproduced in any form or by any means or translated into another language
without the written permission of Canon Inc., except in the case of internal business use.
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Copyright © 2005 by Canon Inc.
CANON INC.
Inkjet Device Quality Assurance Div. 2
451, Tsukagoshi 3-chome, Saiwai-ku, Kawasaki-shi, Kanagawa 212-8530, Japan
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I. MANUAL OUTLINE
This manual consists of the following three parts to provide information necessary to service the PIXMA MP950:
Part 1: Maintenance
Information on maintenance and troubleshooting of the PIXMA MP950
Part 2: Technical Reference
N
ew technology and technical information such as FAQ's (Frequently Asked Questions) of the PIXMA MP950
Part 3: Appendix
Block diagrams and pin layouts of the PIXMA MP950
Reference:
This manual does not provide sufficient information for disassembly and reassembly procedures. Refer to the graphics in the separate
Parts Catalog.

II. TABLE OF CONTENTS
Part 1: MAINTENANCE
1. MAINTENANCE
1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer
1-2. Customer Maintenance
1-3. Product Life
1-4. Special Tools
1-5. Serial Number Location
2. LIST OF ERROR DISPLAY / INDICATION
2-1. Operator Call Errors
2-2. Service Call Errors
2-3. Other Error Messages
2-4. Warnings
2-5. Troubleshooting by Symptom
3. REPAIR
3-1. Notes on Service Part Replacement (and Disassembling / Reassembling)
3-2. Special Notes on Repair Servicing
(1) External cover, scanner unit, and FAU removal
(2) Operation panel removal
(3) Flexible cable and harness wiring, connection
3-3. 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
Service mode operation
Destination settings
Button and LCD test
Waste ink amount setting
3-4. Verification Items
(1) Service test print
(2) EEPROM information print
4. MACHINE TRANSPORTATION
Part 2: TECHNICAL REFERENCE
1. NEW TECHNOLOGIES
2. CLEANING MODE AND AMOUNT OF INK PURGED
3. PRINT MODE
3-1. Normal Color Printing via Computer
3-2. Normal Grayscale Printing via Computer
3-3. Borderless Printing via Computer
3-4. Duplex Printing via Computer
3-5. Camera Direct Printing
3-6. Card Direct / Photo Direct / Wireless Printing
3-7. Copy
4. SCAN MODE
5. FAQ (Problems Specific to the MP950 and Corrective Actions)
Part 3: APPENDIX
1. BLOCK DIAGRAM
2. CONNECTOR LOCATION AND PIN LAYOUT
2-1. Logic Board Ass'y (Main Board)
2-2. Carriage Board (Print Head Connector)
2-3. Memory Card Board
2-4. IrDA / PictBridge Board
2-5. Operation Panel Board
3. PIXMA MP950 SPECIFICATIONS

P
art 1
MAINTENANCE

1. MAINTENANCE
1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement
Consumables by Service Engineer
(1) 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-
adjustable.
The red screws securing the paper feed motor may be loosened only at replacement of the paper feed motor unit.
*1:Only for CD / DVD printing supported regions.󲩷
(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 re
q
uire re
p
lacement b
y
a service en
g
ineer.
Adjustment Timing Purpose Tool Approx.
time
EEPROM reset At logic board replacement To reset each setting None.
Perform in the
service mode.
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.
Destination setting
(EEPROM settings)
At logic board replacement To set destinations None.
Perform in the
user mode.
1 min.
Waste ink counter
resetting
(EEPROM settings)
- At logic board replacement
- At waste ink absorber
replacement
To reset the waste ink counter. None.
Perform in the
service mode.
1 min.
Waste ink amount
settings
(EEPROM settings)
- At logic board replacement
- At waste ink absorber
replacement
To set the waste ink amount to the
waste ink counter.
None.
Perform in the
service mode.
1 min.
Paper feed motor
position adjustment
At paper feed motor
replacement
To adjust the belt tension. (Position
the paper feed motor so that the belt
is stretched tight.)
None. 2 min.
CD / DVD detection
sensor light volume
correction*1
- At logic board replacement
- At carriage unit replacement
To correct the light volume for the
CD / DVD detection sensor.
None.
Perform in the
service mode.
2 min.
Grease application - At carriage unit replacement
- At PR shaft ass'y
replacement
- At CL base or CL gear
replacement
- To maintain sliding properties of
the carriage shaft and the lift cam
shaft.
- To protect the machine's sliding
portions (gears).
FLOIL KG-107A 1 min.
New Ink system function
check
- At logic board replacement
- At platen unit replacement
- At carriage unit replacement
To maintain detection functionality
for presence of the ink tanks and
each ink tank position.
None.
Perform in the
service mode.
1 min.
FAU sponge sheet
position
- At FAU sponge sheet
replacement
- At FAU sponge frame
replacement
- At scanning unit replacement
To position the FAU sponge sheet None. 2 min.
1-1

1-2. Customer Maintenance
*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
(2) Print head
Print volume: 14,000
p
a
g
es
Adjustment Timing Purpose Tool Approx.
time
Print head
alignment
At print head replacement. To ensure accurate dot placement. - Machine buttons
- Computer (automatic
settings via the MP
driver)
3 min.
Print head
cleaning
When print quality is not satisfying. To improve nozzle conditions. - Machine buttons
- Computer (settings via
the MP driver)
1 min.
Print head deep
cleaning
When print quality is not satisfying,
and not improved by print head
cleaning.
To improve nozzle conditions. - Machine buttons
- Computer (settings via
the MP driver)
2 min.
Ink tank
replacement
When an ink tank becomes empty.
("No ink error" displayed on the
monitor, or short flashing of an ink
tank LED)
----- ----- 2 min.
Paper feed roller
cleaning
When paper does not feed properly. To clean the paper feed rollers. Machine buttons 2 min.
CD / DVD print
position
adjustment*1
At CD / DVD printing, when
necessary.
To correct CD / DVD print
position.
Computer (application
software)
5 min.
Bottom plate
cleaning
When the back side of the paper is
smeared.
To clean the platen ribs. - Plain paper
- Computer (settings via
the MP driver)
1 min.
Scanning area
cleaning
- When the platen glass is dirty.
- When the FAU lamp is dirty.
- When the FAU protective sheet is
dirty.
- Clean the platen glass.
- Clean the FAU lamp
- Clean the FAU protective sheet
Clean and soft cloth 1 min.
ASF sub- roller
cleaning
When the paper fed from the ASF is
smeared due to ink mist attached to
the ASF sub-rollers.
To clean the ASF sub-rollers. - 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]
1 min.
Black 1,500 character pattern 6,000 pages
Color A4, 7.5% duty per color pattern 3,500 pages
A4, photo, borderless printing 400 pages
4 x 6, photo, borderless printing 3,000 pages
Postcard, photo, borderless printing 1,100 pages
1-2

(3) Ink tank (target value)
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Black 1,500 character pattern 6,000 pages
Color A4, 7.5% duty per color pattern 3,500 pages
A4, photo, borderless printing 400 pages
4 x 6, photo, borderless printing 3,000 pages
Postcard, photo, borderless printing 1,100 pages
Pattern Ink tank used Print yield
Black text PGI-5BK Approx. 870 pages
Color chart PGI-5BK Approx. 1,400 pages
CLI-8Y Approx. 510 pages
CLI-8M Approx. 540 pages
CLI-8C Approx. 830 pages
Photo chart CLI-8BK Approx. 1,500 pages
CLI-8Y Approx. 320 pages
CLI-8M Approx. 600 pages
CLI-8C Approx. 1,000 pages
CLI-8PM Approx. 140 pages
CLI-8PC Approx. 220 pages
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Black text: When printing the Canon standard pattern (1,500 characters per page) on A4 size plain paper, with the default
settings in the Windows XP driver, using Word 2003.
Color chart: When printing the ISO/JIS-SCID N5 pattern on A4 size plain paper in bordered printing, with the default settings
in the Windows XP driver, using Photoshop 7.0.
Photo chart: When printing the Canon standard pattern on 4" x 6" Photo Paper Plus Glossy in borderless printing, with the
default settings in the Windows XP driver, using Windows XP Photo Printing Wizard.
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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.
1-4. Special Tools
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 carria
g
e moves to the center
)
.
Name Tool No. Application Remarks
FLOIL KG-107A 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.
1-3

To the table of contents To the top
<Part 1: 1. MAINTENANCE>
1-4

2. LIST OF ERROR DISPLAY / INDICATION
Errors and warnings are displayed on the LCD.
2-1. Operator Call Errors (by Alarm LED Blinking in Orange)
Error Error code Message on the LCD Solution
No paper (ASF). [1000] Auto sheet feeder.
There is no paper. Load paper and press [OK].
Set the paper in the ASF, and press the OK button.
No CD / DVD tray.*1 [1001] There is no CD-R tray. Attach the tray and press [OK]. Set the CD / DVD tray, and press the OK button.
No paper in the front paper feed
cassette. [1003] Cassette.
There is no paper. Load paper and press [OK].
Set the paper in the cassette, and press the OK button.
No CD or DVD*1. [1002] Printable disc is not set. Correctly place a disc in the CD-R
tray and press [OK].
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.
Paper jam. [1300] The paper is jammed. Clear the paper and press [OK]. Remove the jammed paper, and press the OK button.
Paper jam in the rear guide. [1303]
Paper jam in the under guide. [1304]
No ink. [1600] Ink has run out. Replace the ink tank and close the cover.
(U041)
Replace the empty ink tank(s) and close the cover. When pressing the
OK button, printing can be continued though ink may run out during
printing..
Ink tank not installed. [1660] The following ink tank cannot be recognized. Applicable
ink color (U043)
Install the applicable ink tank(s) properly, and confirm that the LED's of
all the ink tanks light red.
The print head is not installed or it
is not properly installed.
[1401] Print head is not installed. Install the print head. Install the print head properly.
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The print head temperature sensor
error
[1403] Error code Handle this error by turning ON/OFF the machine. If not recovered, the
print head may have problems. Replace the print head.
Faulty EEPROM data of the print
head
[1405]
Inner cover open before printing on
paper.
(print
continuable).
[1841]*2
Inner cover is open. Close the inner cover and press [OK]. Close the inner cover, and press the OK button.
Inner cover open during printing on
paper.
(print NOT
continuable).
[1846]*2
Close the inner cover, and press the OK 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.
Inner cover open during printing on
paper (print continuable).
(print
continuable).
[1851]*1
Close the inner cover, and press the OK button.
Inner cover open during printing on
paper
(print NOT
continuable).
[1856]*1
Close the inner cover, and press the OK 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.
Inner cover closed during CD /
DVD printing
(print
continuable).
[1850]*1
Open the inner cover, place the CD-R tray and press [OK]. 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.
Inner cover closed during CD /
DVD printing
(print NOT
continuable).
[1855]*1
Open the inner cover, and press the OK button 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.
Multiple ink tanks of the same color
installed.
[1681] More than one ink tank of the following color is installed.
(U075)
Replace the wrong ink tank(s) with the correct one(s).
Ink tank in a wrong position. [1680] Some ink tanks are not installed in place. (U072) Install the ink tank(s) in the correct position.
Warning: The waste ink absorber
becomes almost full.
[1700] The waste ink absorber is almost full. Press [OK] to
continue but early replacement recommended. <See
manual>
Press the OK button. The waste ink absorber full error (service call
error) may occur soon.
The connected digital camera or
digital video camera does not
support Camera Direct Printing.
[2001] Incompatible device detected. Remove the device. Remove the cable between the camera and the machine.
Automatic duplex printing cannot
be performed.
[1310] This paper is not compatible with duplex printing. Remove
the paper and press [OK].
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. Te data of
the back of the page in printing when the error occurred is not printed.
Failed in automatic print head
alignment.
[2500] Auto head align has failed. Press [OK] and repeat
operation. <See manual>
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 OK button, the automatic print head
alignment will not be re-done.
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When printing was not possible due to no ink or no ink ejection.
or, the AD value of the sensor was incorrect.
1-5

*1: Only for models supporting CD / DVD printing
*2: Only for models not supporting CD / DVD printing
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2-2. Service Call Errors (by Cyclic Blinking in Orange (Alarm LED) and Green (Copy LED))
Service call errors are indicated by the error code. (excluding scanner lock error / scanner malfunction error)
The remaining ink amount
unknown.
[1683] (Applicable ink tank icon)
The remaining level of the following ink cannot be
correctly detected.
An ink tank which has once been empty is installed. Replace the
applicable ink tank with a new one.
If continuing printing, the print head may be damaged.
When continuing printing using the ink tank in which ink was refilled,
press the Reset button for more than five seconds to leave the history
which shows that the ink tank in which ink had been refilled was used.
* After this operation, the ink remaining detection function is released.
Ink tank not recognized. [1684] (Applicable ink tank icon)
The following ink tank cannot be recognized. (U140)
A non-supported ink tank is installed (the ink tank LED is turned off).
Install the supported ink tanks.
Ink tank not recognized. [1410 to 1419] (Applicable ink tank icon)
The following ink tank cannot be recognized. (U150)
An error occurred in an ink tank (the ink tank LED is turned off).
Replace the ink tank(s).
Scanning unit (access cover) open. [1200] Cover is open. Close the cover. Close the scanning unit (access cover).
Cycles of
blinking in
orange (Alarm
LED) and
green (Copy
LED)
Error Error code Conditions
Solution
(Replacement of listed parts, which are
likely to be faulty)
2 times Carriage error [5100] An error occurred in the carriage encoder signal. - Carriage unit
- Timing slit strip film
- Logic board ass'y
- Carriage motor
3 times Line feed error [6000] An error occurred in the line feed signal. - Timing sensor unit
- Timing slit disk film
- Feed roller
- Platen unit
- Logic board ass'y
- Paper feed motor
4 times Purge cam sensor error [5C00] An error occurred in the purge unit. - Purge unit
- Logic board ass'y
5 times ASF (cam) sensor error [5700] This error takes place when feeding paper from the ASF after an
error occurred in the ASF cam sensor.
- Sheet feed unit
6 times Internal temperature error [5400] The internal temperature is not proper. - Logic board ass'y
7 times Waste ink absorber full [5B00] The waste ink absorber is full. - Ink absorber kit
8 times Print head temperature rise
error
[5200] The print head temperature exceeded the specified value. - Print head
- Logic board ass'y
9 times EEPROM error [6800] A problem occurred in writing to the EEPROM. - Logic board ass'y
11 times Carriage lift mechanism error [5110] The carriage did not move up or down properly. - PR lift shaft ass'y
- Sheet feed unit
- Logic board ass'y
- Carriage lift sensor unit
12 times AP position error [6A00] An error occurred in the AP motor during purging operation. - Sheet feed unit
- Logic board ass'y
- Purge unit
13 times Paper feed position error [6B00] An error occurred in the paper feed motor. - Sheet feed unit
- Logic board ass'y
14 times Paper feed cam sensor error [6B10] An error occurred in the paper feed cam sensor 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.
- Sheet feed unit
- Logic board ass'y
15 times USB Host VBUS overcurrent [9000] The USB Host VBUS is overloaded. - Logic board ass'y
16 times Valve sensor error [6C00] An error occurred in the valve sensor during cleaning. - Logic board ass'y
- Purge unit
17 times Motor driver error [6D00] The AD conversion value indicating the motor driver temperature is
not proper.
- Logic board ass'y
19 times Ink tank position sensor error [6502] None of the ink tank position is detected. - Platen unit
- Logic board ass'y
20 times Other hardware error [6500] The PCI bus error is detected by the ASIC. - Logic board ass'y
Alarm LED lit Scanner lock error [5020] The scanner unit cannot detect the home position at power-on.
Because it is assumed that the machine was powered with the lock
lever locked, although this error is classified as the service call
error, this error is indicated by both Alarm LED (orange) and the
LCD message as in an operator call error.
On the LCD, "Release the scanner lock switch and turn off the
machine and then on." is displayed.
- Releasing of the scanner lock lever
- Turn off the machine and then on
22 times Scanner error [5010] The scanner unit cannot detect the home position, or the scanner
unit warming-up is not done properly at power-on.
On the LCD, "Scanner is not operating correctly." is displayed.
- Scanner unit
Continuous
alternate
ROM error [6100] The check sum value is incorrect in the ROM check at hard-power-
on.
- Logic board ass'y
1-6

2-3. Other Error Messages
2-4. Warnings
blinking
Alarm LED lit RAM error [6300] The RAM error occurred in the RAM check at hard-power-on. - Logic board ass'y
Message on the LCD Cause Solution
Printing is unavailable. Data received via wireless
communication is not photo data.
The received image data was invalid in infrared communication
from a mobile phone.
The error message is displayed for a while, then the LCD
automatically returns to the initial screen you see when the
COPY, SCAN, FILM SOURCE, or MEMORY CARD button is
pressed.
The selected paper cannot be fed from cassette. Change
the paper source.
The paper type being used is not supported for paper feeding
from the cassette. (Business Card, Credit Card size paper and
Photo Stickers are not supported.)
Change the paper source to the ASF.
Cannot specify the followings together. Change one of
the settings.
Settings made conflict each other. The error message is displayed for a while, then the LCD
automatically returns to the display before the error occurrence.
Device memory is full. Cannot continue process.
Reduce the number of photos to print.
The memory is not sufficient to do the print job. Reduce the amount of data to be printed, or print from a
computer.
Failed to scan. Either document cannot be scanned or is
not placed on the platen glass.
The machine failed in scanning the document for Fit-to-page
copy, or when doing pre-scanning in a photo / film, the photo /
film cannot be recognized.
Press the OK button to clear the error. The LCD automatically
returns to the display before the error occurrence.
Press <>.
(<>: Color button icon)
The Black button was pressed, but it is invalid. A temporary error. Press the Color button to continue the
operation.
Press <>.
(<>: Black button icon)
The Color button was pressed, but it is invalid. A temporary error. Press the Black button to continue the
operation.
There are no photos in memory card. Supported image files are not in the memory card. The error message is displayed for a while, then disappears.
The value exceeds the number of copies you can print. During selecting images or specifying the number of copies, the
total print quantity exceeds the prescribed value of 999.
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.
Memory card is not set. Insert the card after checking
the direction.
No memory card is inserted in the slot. Set a memory card.
DPOF information is not saved in the memory card. DPOF print was selected in the menu, but no DPOF files are
contained in the memory card.
The error message is displayed for a while, then the LCD
automatically returns to the display before the error occurrence.
The number of copies to print is not set. Input the
number of copies.
Multi-photo print was attempted without specifying the print
quantity (with the print quantity left "0" (zero)).
The error message is displayed for a while, then disappears.
Specify the print quantity.
This layout is available only for A4 or 8.5"x11"(LTR). 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 display before the error occurrence.
Settings cannot be changed when printing stickers. With Sticker print selected, the Settings button was pressed. The error message is displayed for a while, then the LCD
automatically returns to the display before the error occurrence.
Change the setting after removing the card. With a memory card inserted in the slot, change of the
Read/Write attribute was attempted.
The error message is displayed for a while, then the LCD
automatically returns to the display before the error occurrence.
The card is currently write-enabled. Set to read-only
mode before performing operation.
With the memory card set to the Write-enabled mode, Card
Direct printing operation was attempted from the menu.
The error message is displayed for a while, then the LCD
automatically returns to the display before the error occurrence.
The paper size is not correct. Check the page size you
have set.
Non-supported size of paper for Camera Direct (PictBridge)
printing is selected.
Cancel printing on the digital camera.
Failed to scan Photo Index Sheet. Check the
orientation, position and marking. <See manual>
The machine failed in scanning the Photo Index Sheet. Press the OK button to clear the error. The LCD automatically
returns to the display before the error occurrence.
Failed to scan handwriting sheet. Check orientation and
position, and make sure platen and sheet are clean.
<See manual>
The machine failed in scanning the handwriting sheet. Press the OK button to clear the error. The LCD automatically
returns to the display before the error occurrence.
Failed to scan. Try again. Scanning the film failed. Film was not set, or color /
black&white or positive / negative settings was wrong.
Press the OK button to clear the error. The LCD automatically
returns to the display before the error occurrence.
Film scanning error. Remove FAU (Film Adapter Unit)
protective sheet.
The lamp has insufficient illumination for scanning the film.
(The sponge frame was not removed, or the lamp has a problem.)
Press the OK button to clear the error. The LCD automatically
returns to the display before the error occurrence.
Photo scan error. Photo size is too large. Leave at east
10mm between photos.
Although the images scanned at multi cropping was saved using
JPEG, the data size was too large. Because the gap between each
photo was too narrow, the data was detected as one image which
was too large for photo scanning.
Press the OK button to clear the error. The LCD automatically
returns to the display before the error occurrence.
Perform operation after the film is scanned. In the photo / film mode, the print operation was attempted from
the menu screen before scanning the photo / film.
The error message is displayed for a while, then the LCD
automatically returns to the display before the error occurrence.
Warning Message on the LCD Solution
Low ink The following ink is low. Continue?
(Icon of each ink tank)
Yes No
- Select Yes, and press the OK button.
=> Printing starts, and it is indicated on the LCD.
- Select No, and press the OK button.
=> Printing is cancelled, and the LCD returns to the display
immediately before printing was attempted.
In Camera Direct Printing, only "Yes" can be selected.
Print head temperature rise If the print head temperature does not fall, the error code "5200" is
displayed, indicating the print head temperature rise error.
When the print head temperature falls, the error is automatically cleared.
Note:
If the print head temperature exceeds the specified limit when the
1-7

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󲩷
2-5. Troubleshooting by Symptom
scanning unit (printer cover) is opened, the carriage does not move to the
ink tank replacement position.
Protection of excess rise of the print
head temperature
If the print head temperature does not fall, the error code "5200" is
displayed, indicating the print head temperature rise error.
If the print head temperature exceeds the specified limit, an intermission is
inserted during printing.
Restrictions on paper The current paper cannot be set. Change the size and type. Re-select the supported paper type and size.
Recommendation of the print head
alignment (only on arrival of the
machine)
Head alignment required. Load paper and press [OK].
Yes No
- Select Yes, and press the OK button.
=> Automatic print head alignment is done.
- Select No, and press the OK button.
=> The procedures on arrival of the machine are finished.
USB cable not connected Connect USB cable and turn on the PC. Connect the USB cable.
Cancellation of trimming
information
Reset trimming effect?
Yes No
When DVD / CD printing was attempted with the image with trimming
effects present.
󲩷
- Select Yes, and press the OK button.
=> The trimming information is cancelled, and operation performed
before the message was displayed can be continued.
- Select No, and press the OK button.
=> The LCD returns to the display immediately before the message
was displayed.
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Cancellation of image select
information
Reset the selected photo information?
Yes No
When one or more images are selected in Multi-photo print or Layout
print, and if a user tries to display the menu or sub-menu, the message is
displayed.
󲩷
- Select Yes, and press the OK button.
=> The image selection is cancelled, and the menu or sub-menu is
displayed.
- Select No, and press the OK button.
=> The LCD returns to the display immediately before the message
was displayed.
Symptom Solution
Faulty operation The power does not turn on.
The power turns off immediately after power-on.
- 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.
A strange noise occurs. - 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.
Nothing is displayed on the LCD. - Confirm the connection between the operation panel, the scanner unit, and the logic board.
- Replace the
- LCD, or
- logic board ass'y.
A portion of the LCD is not displayed. - Perform the button and LCD test in the service mode, and 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 board.
- Replace the
- sheet feeder unit,
- cassette, or
- logic board ass'y.
Carriage movement problems (contact to other parts, strange
noise)
- Confirm that the timing slit strip film is free from damage or grease.
- Clean the timing slit strip film. (Use ethanol + Silbon paper)
- Replace the
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*1: Replace the print head only after the print head deep cleaning is performed 2 times, and when the problem persists.
󲩷
- timing slit strip film, or
- carriage unit.
Faulty scanning (no scanning, strange noise) - Confirm the connection between the scanner unit and the logic board.
- Replace the
- scanner unit, or
- logic board ass'y.
FAU lamp not lit - Confirm the connection between the scanner unit and the logic board.
- Replace the
- Document pressure plate unit (FAU), or
- logic board ass'y.
Unsatisfactory print quality No printing, or no color ejected. - Replace the
- 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.
- Remove and re-install the print head.
- Replace the
- ink tank,
- print head*1,
- purge unit, or
- logic board ass'y.
Paper gets smeared. - Feed several sheets of paper.
- Perform bottom plate cleaning.
- Clean the paper path with cotton swab or cloth.
- Clean the ASF sub-rollers.
A part of a line is missing on printouts. - Replace the
- ink tank, or
- print head*1.
Color hue is incorrect. - Replace the
- ink tank, or
- print head*1.
- Perform print head alignment.
Printing is incorrect. Replace the logic board ass'y.
No ejection of black ink. - Replace the
- ink tank, or
- print head*1.
- Remove foreign material from the purge unit caps, if any.
- Replace the purge unit.
Graphic or text is enlarged on printouts. 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:
- Clean grease or oil off the timing slit disk film
- Replace the
- timing slit disk film,
- timing sensor unit, or
- logic board ass'y.
Faulty scanning No scanning. - Confirm the connection between the scanner unit and the 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
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To the table of contents To the top
<Part 1: 2. LIST OF ERROR DISPLAY / INDICATION>
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3. REPAIR
3-1. Notes on Service Part Replacement (and Disassembling / Reassembling)
Service part Notes on replacement*1 Adjustment / settings Operation check
Logic board ass'y
QM2-3066
- 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, and 3-
4. Verification Items (2)
EEPROM information print ]
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.
[See 3-3. Adjustment / Settings,
(8) Service mode.]
6. Perform the print head
alignment in the user mode.
- EEPROM information print
- Service test print
- Printing via USB connection
- Copy
- Direct printing from a digital
camera
Ink absorber kit
QY5-0153
After replacement:
1. Reset the waste ink counter.
[See 3.3. Adjustment / Settings,
(8) Service mode.]
- Service test print
- EEPROM information print
Carriage unit
QM2-3065
At replacement:
1. Apply grease to the sliding
portions.
[See 3-3. Adjustment /
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.
- Service test print (Confirm
CD / DVD and automatic
print head alignment sensor
correction, and ink system
function.)
Paper feed motor
QK1-1502
- The red screws securing the
paper feed motor are allowed
to be loosened. (DO NOT
loosen any other red screws.)
At replacement:
1. Adjust the paper feed motor.
[See 3-3. Adjustment / Settings,
(1) Paper feed motor
adjustment.]
Platen unit
QM2-3026
At replacement:
1. Check the ink system
function.
[See 3.3. Adjustment / Settings,
(8) Service mode.]󲩷
- Service test print
PR lift shaft ass'y
QL2-0936
󲩷At replacement:
1. Apply grease to the sliding
portions.
[See 3.3. Adjustment / Settings,
(2) Grease application.]
- Service test print
Carriage lift base unit
QM-2232
At replacement:
1. Apply grease to the sliding
portions.
[See 3.3. Adjustment / Settings,
(2) Grease application.]
󲩷
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*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).
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Timing slit strip film
QC1-6526
- 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.
- Service test print
Timing slit disk film
QC1-6229
Print head
QY6-0062
After replacement:
1. Perform the print head
alignment in the user mode.
- Service test print
To the table of contents To the top
<Part 1: 3. REPAIR, 3-1>
1-12

3-2. Special Notes on Repair Servicing
(1) External cover, scanner unit and FAU removal
(I) Remove the cassette, the front door (paper output tray), and the door damper.
- Pull out the cassette and remove it from the machine.
- Warp the front door up a little and push its right side downward to remove it from the bottom case.
- When removing the front door, remove the door damper from the hole of the bottom case.
(II) Remove the screws to detach the side cover from the main case.
- Remove the four screws from the back. Then, remove one screw from the upper left and one from the upper right,
and detach the side cover from the main case.
(III) Remove the front cover L and the side cover L.
- Front cover L: Be cautious not to contact the release lever to avoid a scratch or breaking claws.
- After removing the front cover, release the claws of the side cover and detach it from the main case.
- For the claw locations, see the photos below (indicated by the red circles).
- Remove the main case plate L (by removing one screw), and detach the side cover L.
- For the location of the claws on the side cover L, the main case, and the bottom case, see the
p
hotos below.
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(IV) Remove the front cover R, the side cover R, and the cable cover.
- Front cover R: Be cautious with a scratch or breaking claws.
For the location of the claws, see the red circles in the photos below.
- After removing the front cover R, detach the main case plate R.
- After detaching the main case plate R (the photo in the left) by removing one screw, remove the cable cover
(the photo in the right) by sliding the side cover R outward.
- Remove the side cover R. (Be cautious not to contact with the LED Windows (indicated in green)
card board area.
- For the location of the claws on the side cover R, the main case, and the bottom case, see the photos below
(
Indicated b
y
the red circles
)
.
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(V) Disconnect the cables which connect the scanner unit and FAU to the logic board and panel relay board.
The left photo: before disconnecting the cable
The right photo: after disconnecting the cable
[See 3-2. Connector Location and Pin Layout.]
(VI) Remove the scanner stop arm.
- While holding the scanner unit, disengage the scanner stop arm from the main case unit.
- Disen
g
a
g
e the scanner sto
p
arm from the scanner unit b
y
sli
g
htl
y
twistin
g
the scanner sto
p
arm.
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