Canon PIXMA MP830 User manual

PIXMA MP830
SERVICE
MANUAL
Canon
Copyright 2006, 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.

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.
󲩷
󲩷
Copyright © 2006 by Canon Inc.
CANON INC.
Inkjet Device Quality Assurance Div. 2
451, Tsukagoshi 3-chome, Saiwai-ku, Kawasaki-shi, Kanagawa 212-8530, Japan
󲩷

I. MANUAL OUTLINE
This manual consists of the following three parts to provide information necessary to service the PIXMA MP830:
Part 1: Maintenance
Information on maintenance and troubleshooting of the PIXMA MP830
Part 2: Technical Reference
N
ew technology and technical information such as FAQ's (Frequently Asked Questions) of the PIXMA MP830
Part 3: Appendix
Block diagrams and pin layouts of the PIXMA MP830
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. Fax Errors
2-4. Other Error Messages
2-5. Warnings
2-6. Troubleshooting by Symptom
3. REPAIR
3-1. Notes on Service Part Replacement (and Disassembling / Reassembling)
3-2. Special Notes on Repair Servicing
(1) Power supply unit removal / reassembly
(2) Cassette, front door (paper output tray), and door damper removal
(3) Emblem removal
(4) Side cover (right and left) removal
(5) Front cover (right and left) removal
(6) DF front cover removal
(7) DF rear cover removal
(8) Stop arm removal
(9) DF grip cover and DF right cover removal
(10) Document feed unit removal
(11) Separation tab, document feed roller, and separation roller cleaning
(12) DF cable cover removal
(13) ADF hinge removal
(14) Operation panel (right and left) removal
(15) LCD upper cover removal
(16) Operation panel unit removal
(17) LCD unit removal
(18) Logic board ass'y wiring
(19) Scanner stop arm removal
(20) Scanner stopper removal
(21) Cable holder sheet position
(22) Scanner unit removal
(23) Main case unit removal
(24) Base case and printer unit wiring
(25) Logic board ass'y removal
(
26
)
Printer unit removal

3-3. Adjustment / Settings
(1) Paper feed motor adjustment
(2) Grease application
(3) Waste ink counter setting
(4) White sponge sheet attachment
(5) User mode
(6) Service mode
Service mode operation
Destination settings
LF correction
Waste ink amount setting
Button and LCD test
3-4. Verification Items
(1) Service test print
(2) EEPROM information print
(3) Fax report
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 Printing
3-7. Copying
4. FAQ (Problems Specific to the MP830 and Corrective Actions)
Part 3: APPENDIX
1. BLOCK DIAGRAM
2. CONNECTOR LOCATION AND PIN LAYOUT
2-1. Logic Board Ass'y
2-2. NCU Board
2-3. Relay Board
2-4. Card Slot Board
2-5. Operation Panel Board
2-6. Carriage Board (Print Head Connector)
3. PIXMA MP830 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 require replacement by a service engineer.
1-2. Customer Maintenance
Adjustment Timing Purpose Tool Approx.
time
EEPROM initialization At logic board replacement To initialize settings. None. 1 min.
Destination settings
(EEPROM settings) At logic board replacement To set the destination. None.
Perform in the service
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
setting
(EEPROM settings)
- At logic board 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. 5 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 and Open button).
FLOIL KG-107A
MOLYKOTE PG-641
1 min.
󲩷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.
󲩷 Line feed correction - At logic board replacement
- At feed roller ass'y replacement To correct the line feed tolerant accuracy. None. 3 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.
󲩷 Document pressure
sheet position
adjustment
- At document pressure sheet
replacement
- At document feed base
replacement
To adjust the pressure sheet to fit in place to
the four corners of the platen glass when the
cover is closed.
None. 2 min.
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.
1-1

*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: 19,000 pages
(II) Years of use: 5 years of use
(2) Print head
Same as the machine life.
(3) Ink tank (target value)
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)
To replace the empty ink tank. None. 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. - Machine buttons
- Computer (settings via the
MP driver)
1 min.
Scanning area
cleaning When the following are dirty:
- Platen glass
- Document pressure sheet
- ADF glass
- White sheet in the back of the ADF
To clean the applicable items. Soft, dry, and clean lint-
free cloth. 1 min.
ADF cleaning When inside of the ADF cover is dirty. To clean the inside of the ADF cover Soft, dry, and clean lint-
free 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, 4. FAQ, How
to make and set the ASF
sub-roller cleaning sheet,
for details]
1 min.
Fax 1,500 character pattern 230 pages
Black 1,500 character pattern 10,260 pages
Color A4, 7.5% duty per color pattern 7,450 pages
A4, photo, borderless printing 150 pages
4 x 6, photo, borderless printing 610 pages
Postcard, photo, borderless printing 300 pages
Pattern Ink tank used Print yield
Black text PGI-5BK Approx. 880 pages
Color chart PGI-5BK Approx. 1,250 pages
CLI-8C Approx. 710 pages
CLI-8M Approx. 500 pages
CLI-8Y Approx. 480 pages
1-2

Photo chart CLI-8BK Approx. 1,100 pages
CLI-8C Approx. 280 pages
CLI-8M Approx. 250 pages
CLI-8Y Approx. 390 pages
󲩷
󲩷
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.
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
carriage moves to center).
Name Tool No. Application Remarks
FLOIL KG-107A QY9-0057-000 To be applied to the sliding portions of the
carriage shaft, lift cam shaft, and machine's
sliding portions (gears).
In common with the
S520.
MOLYKOTE PG-641 CK-0562-000 To be applied to the Open button sliding
portion. In common with the i950.
To the table of contents To the top
<Part 1: 1. MAINTENANCE>
1-3

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) Warnings during printing from a computer are displayed on the printer 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 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.
Pressing the OK button will clear the error
without ink tank replacement, however, ink
may run out during printing.
Ink tank not installed. [1660] The following ink tank cannot be recognized.
(Applicable ink tank icon) (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.
(U051) Install the print head properly.
Print head temperature
sensor error [1403] The type of print head is incorrect. Install the correct print head.󲩷 Re-set the print head. If the error is not
cleared, the print head may be defective.
Replace the print head.
Faulty EEPROM data of the
print head [1405]
Inner cover open before
start of printing on paper
(print continuable).*2
[1841] 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).*2
[1846] 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 before
start of printing on paper
(print continuable).*1
[1851] Close the inner cover, and press the OK
button.
Inner cover open during
printing on paper (print [1856] Close the inner cover, and press the OK button to clear the error. The paper being
1-4

*1: Only for models supporting CD / DVD printing
*2: Onl
y
for models not su
pp
ortin
g
CD / DVD
p
rintin
g
NOT continuable).*1 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 before
start of CD / DVD printing
(print continuable).*1
[1850] 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).*1
[1855] 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 service call error, indicating the waste
ink absorber is full, is likely to 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. Data
which was to be printed on the back side of
paper at error occurrence is skipped (not
printed).
Failed in automatic print
head alignment. [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.
The error will occur when the print head
alignment pattern is not printed due to no ink
or non-ejection of ink.
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.
Printing with a once-empty or refilled ink
tank can damage the print head.
If printing is continued without replacing the
refilled ink tank, press the Stop/Reset button
for 5 sec. or longer to record the use of a
refilled ink tank.
Note:
After the above operation, the function to
detect the remaining ink amount is disabled.
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]
[1682] (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 (printer
cover) open. [1200] Cover is open. Close the cover. Close the scanning unit (printer cover).
Scanner lock switch locked. [5020] Release the scanner lock switch and turn the power
off and back on. Turn the machine off, unlock the scanner lock
switch, then turn the machine on again.
1-5

2-2. Service Call Errors (by Cyclic Blinking in Orange (Alarm LED) and Green (COPY button), or Alarm LED Lit
in Orange)
Service call errors are indicated by the number of cycles the Alarm LED and COPY button blink, and the corresponding error code is displayed
on the LCD.
Cycles of blinking in
orange (Alarm LED)
and green (COPY
button)
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 film
- 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
- Platen unit
- 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
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
- Carriage unit
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
9 times EEPROM error [6800] A problem occurred in writing to the EEPROM. - Logic board
11 times Carriage lift
mechanism
error
[5110] The carriage did not move up or down properly. - PR lift shaft
- Sheet feed unit
- Logic board
- 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
- Purge unit
13 times Paper feed
position error [6B00] An error occurred in the paper feed motor. - Sheet feed unit
- Logic board
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
15 times USB Host
VBUS
overcurrent
[9000] The USB Host VBUS is overloaded. - Logic board
16 times Valve sensor
error [6C00] An error occurred in the valve sensor during cleaning. - Logic board
- Purge unit
17 times Motor driver
error [6D00] The AD conversion value indicating the motor driver temperature is not proper. - Logic board
19 times Ink tank
position sensor
error
[6502] None of the ink tank position is detected. - Platen unit
- Logic board
20 times Other hardware
error [6500] The PCI bus error is detected by the ASIC. - Logic board
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 - Logic board
1-6

Note: Before replacement of the logic board ass'y, check the waste ink amount (by service test print or EEPROM information print). If the
waste ink amount is 7% or more, also replace the ink absorber kit (QY5-0153) when replacing the logic board ass'y. [See Section 3-3.
Adjustment / Settings, (6) Service mode, for details.]
2-3. Fax Errors
For errors other than those listed below, please refer to the "G3 / G4 Facsimile Error Code List (Rev. 2)."
(1) User error codes
(2) Service error codes
blinking hard-power-on.
Alarm LED lit RAM error [6300] The RAM error occurred in the RAM check at hard-
power-on. - Logic board
Error code TX / RX Meaning
#001 TX Document jam
#003 TX / RX Document is too long, or page time-over
#005 TX / RX Initial identification (T0 / T1) time-over
#009 RX Recording paper jam, or no recording paper
#012 TX No recording paper at the receiving machine
#017 TX Redial time-over, but no DT detected
#018 TX Auto dialing transmission error, or redial time-over
#022 TX Call failed (no dial registration)
#037 RX Memory overflow at reception of an image
#085 TX No color fax function supported in the receiving machine
#099 TX / RX Transmission terminated mid-way by pressing the Stop/Reset button
#995 TX / RX During TX (sending): Memory transmission reservation cancelled
During RX (receiving): Image data received in the memory cleared
Error code TX / RX Meaning
##100 TX Re-transmission of the procedure signal has been attempted the specified number of times, but failed.
##101 TX / RX Sender's modem speed does not match the receiving machine.
##102 TX Fallback is not available.
##103 RX EOL has not been detected for 5 seconds (or 15 seconds in CBT).
##104 TX RTN or PIN has been received.
##106 RX The procedure signal has been expected for 6 seconds, but not received.
##107 RX Fallback is not available at the sending machine.
##109 TX After DCS transmission, a signal other than DIS, DTC, FTT, CFR, or CRP has been received, and re-transmission of the
procedure signal has been attempted the specified number of times but failed.
##111 TX / RX Memory error
##114 RX RTN has been received.
##200 RX A carrier has not been detected for 5 seconds during image reception.
##201 TX / RX DCN has been received in a method other than the binary procedure.
##204 TX DTC has been received even when there is no sending data.
##220 TX / RX System error (main program hang-up)
##224 TX / RX An error has occurred in the procedure signal in G3 transmission.
##226 TX / RX The stack pointer has shifted from the RAM area.
##229 RX The recording area has been locked for 1 minute.
##232 TX The encoder control unit has malfunctioned.
##237 RX The decoder control unit has malfunctioned.
##238 RX The print control unit has malfunctioned.
##261 TX / RX A system error has occurred between the modem and the system control board.
1-7

##280 TX Re-transmission of the procedure signal has been attempted the specified number of times, but failed.
##281 TX Re-transmission of the procedure signal has been attempted the specified number of times, but failed.
##282 TX Re-transmission of the procedure signal has been attempted the specified number of times, but failed.
##283 TX Re-transmission of the procedure signal has been attempted the specified number of times, but failed.
##284 TX After TCF transmission, DCN has been received.
##285 TX After EOP transmission, DCN has been received.
##286 TX After EOM transmission, DCN has been received.
##287 TX After MPS transmission, DCN has been received.
##288 TX After EOP transmission, a signal other than PIN, PIP, MCF, RTP, RTN has been received.
##289 TX After EOM transmission, a signal other than PIN, PIP, MCF, RTP, RTN has been received.
##290 TX After MPS transmission, a signal other than PIN, PIP, MCF, RTP, RTN has been received.
##670 TX In V.8 late start, the DIS V.8 ability from the receiving machine was detected, and CI was sent in response; however, the
procedure failed, causing T1 time-over.
##671 RX In V.8 call reception, the procedure fails to proceed to phase 2 after CM detection, causing T1 time-over.
##672 TX In V.34 transmission, the procedure fails to proceed from phase 2 to phase 3 or later, causing T1 time-over
##673 RX In V.34 reception, the procedure fails to proceed from phase 2 to phase 3 or later, causing T1 time-over
##674 TX In V.34 transmission, the procedure fails to proceed from phase 3 or 4 to the control channel or later, causing T1 time-
over
##675 RX In V.34 reception, the procedure fails to proceed from phase 3 or 4 to the control channel or further, causing T1 time-over
##750 TX After transmitting PPS-NULL in ECM transmission, no significant signal has been received, and re-transmission of the
procedure signal has been attempted the number of specified times but failed.
##752 TX After transmitting PPS-NULL in ECM transmission, DCN has been received.
##753 TX After transmitting PPS-NULL in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed, or T5 time-over (60 sec.) has occurred.
##754 TX After transmitting PPS-NULL in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed.
##755 TX After transmitting PPS-MPS in ECM transmission, no significant signal has been received, and re-transmission of the
procedure signal has been attempted the number of specified times but failed.
##757 TX After transmitting PPS-MPS in ECM transmission, DCN has been received.
##758 TX After transmitting PPS-MPS in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed, or T5 time-over (60 sec.) has occurred.
##759 TX After transmitting PPS-MPS in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed.
##760 TX After transmitting PPS-EOM in ECM transmission, no significant signal has been received, and re-transmission of the
procedure signal has been attempted the number of specified times but failed.
##762 TX After transmitting PPS-EOM in ECM transmission, DCN has been received.
##763 TX After transmitting PPS-EOM in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed, or T5 time-over (60 sec.) has occurred.
##764 TX After transmitting PPS-EOM in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed.
##765 TX After transmitting PPS-EOP in ECM transmission, no significant signal has been received, and re-transmission of the
procedure signal has been attempted the number of specified times but failed.
##767 TX After transmitting PPS-EOP in ECM transmission, DCN has been received.
##768 TX After transmitting PPS-EOP in ECM transmission, re-transmission of the procedure signal has been attempted the number
of specified times but failed, or T5 time-over (60 sec.) has occurred.
##769 TX After transmitting PPS-EOP in ECM transmission, re-transmission of the procedure signal has been attempted the number
of specified times but failed.
##770 TX After transmitting EOR-NULL in ECM transmission, no significant signal has been received, and re-transmission of the
procedure signal has been attempted the number of specified times but failed.
##772 TX After transmitting EOR-NULL in ECM transmission, DCN has been received.
##773 TX After transmitting EOR-NULL in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed, or T5 time-over (60 sec.) has occurred.
##774 TX After transmitting EOR-NULL in ECM transmission, ERR has been received.
##775 TX After transmitting EOR-MPS in ECM transmission, no significant signal has been received, and re-transmission of the
procedure signal has been attempted the number of specified times but failed.
##777 TX After transmitting EOR-MPS in ECM transmission, DCN has been received.
##778 TX After transmitting EOR-MPS in ECM transmission, re-transmission of the procedure signal has been attempted the
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󲩷
2-4. Other Error Messages
number of specified times but failed, or T5 time-over (60 sec.) has occurred.
##779 TX After transmitting EOR-MPS in ECM transmission, ERR has been received.
##780 TX After transmitting EOR-EOM in ECM transmission, no significant signal has been received, and re-transmission of the
procedure signal has been attempted the number of specified times but failed.
##782 TX After transmitting EOR-EOM in ECM transmission, DCN has been received.
##783 TX After transmitting EOR-EOM in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed, or T5 time-over (60 sec.) has occurred.
##784 TX After transmitting EOR-EOM in ECM transmission, ERR has been received.
##785 TX After transmitting EOR-EOP in ECM transmission, no significant signal has been received, and re-transmission of the
procedure signal has been attempted the number of specified times but failed.
##787 TX After transmitting EOR-EOP in ECM transmission, DCN has been received.
##788 TX After transmitting EOR-EOP in ECM transmission, re-transmission of the procedure signal has been attempted the
number of specified times but failed, or T5 time-over (60 sec.) has occurred.
##789 TX After transmitting EOR-EOP in ECM transmission, ERR has been received.
##790 RX After receiving EOR-EOP in ECM reception, ERR has been transmitted.
##791 TX / RX During the ECM mode procedure, a signal other than a significant one has been received.
##792 RX In ECM reception, PPS-NULL between partial pages has not been detected.
##793 RX During high-speed signal reception in ECM, no effective frame has been detected, and a time-over has occurred.
Message on the LCD Cause Solution
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. 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 photos or films were not
recognized in pre-scanning.
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.
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󲩷2-5. Warnings
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 Read/write 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 PictBridge Camera Direct 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.
Photo scan error. Photo size is too large.
Leave at least 10mm between photos. In cropping multiple photos at the same time, since the space between the photos were not
sufficient, the photos were considered as a single
JPEG file, and the file became too large.
Press the OK button to clear the error. 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 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 performed.
- 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 Reset trimming effect?
Yes No
With a trimmed image present, when printing on a DVD
or CD is attempted, the message is displayed.
- Select Yes, and press the OK button.
=> The trimming is cancelled, and printing on a DVD
or CD can be performed.
- Select No, and press the OK button.
=> The LCD returns to the display immediately before
the message was displayed.
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.
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2-6. Troubleshooting by Symptom
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
- power supply unit, or
- logic board.
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 scanning
unit, and the logic board.
- Replace the
- LCD, or
- logic board.
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 scanning
unit, and the logic board.
- Replace the
- LCD, or
- logic board.
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.
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).
- 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.
No paper feeding from the ADF (no operation
of the ADF motor). - Confirm the connection
- between the ADF motor and the ADF PWB, and
- between the ADF PWB and the logic board.
- Replace the
- document feed unit, or
- logic board.
No sound from the speaker. - Confirm the connection between the speaker and the logic board.
- Replace the
- speaker, or
- logic board.
Unsatisfactory print quality No printing, or no color ejected. - Replace the
- ink tank,
- print head*1, or
- logic board.
- 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.
Paper gets smeared. - Feed several sheets of paper.
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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.
- 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.
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.
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.
Faulty scanning No scanning. - Confirm the connection between the scanning unit and the logic
board.
- Replace the
- scanning unit, or
- logic board.
Streaks or smears on the scanned image. - Clean the platen glass and the ADF.
- Confirm the connection between the scanning unit and the logic
board.
- Replace the
- scanning unit,
- logic board, or
- sponge sheet.
No paper feeding from the ADF (no operation
of the ADF motor). - Confirm the connection
- between the ADF motor and the ADF PWB, and
- between the ADF PWB and the logic board.
- Replace the
- document feed unit, or
- logic board.
Document slipping over the roller (copied
image enlarged), or document not separated. - Clean the friction tab, document feed roller, and separation roller.
- Replace the document feed unit.
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2-7. Fax Communication Troubleshooting
(1) Identification of a trouble
A fax machine transmits image data to a receiver through a telephone line. A trouble in any of the transmitter, receiver, and telephone line can
prevent the machine from transmitting image data properly.
󲩷
󲩷
For the best solution to your fax trouble, follow the flowchart below to determine whether it is a communication trouble or not.
󲩷
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(2) Handling of a communication trouble
Follow the procedure below to handle communication troubles.
1) Investigate the condition in which the trouble occurred.
a. User operation at trouble occurrence
- Number of sheets of the document
- Transmission mode
- Timing when the error occurred (e.g. before or after transmission)
- Other settings (e. g. such as automatic dialing)
b. Sample print of a faulty fax reception
c. Message on the LCD at trouble occurrence
d. Activity report at trouble occurrence
e. User name, telephone number, fax number, and model name
f. The other party's user name, telephone number, fax number, model name, and service engineer name
g. Frequency and error type of the trouble
h. The other party's fax condition
- Number of sheets transmitted
- Communication mode (automatic or manual)
- Whether an error occurred or not
- Reception condition, etc.
Memo: The number of sheets / times of communication and error code can be confirmed in EEPROM information print.
2) Conduct the communication test, by following the flowchart below.
- Perform the operations using the actual line several times each, and record the phenomenon.
- If a communication trouble occurs between a Canon machine and a non-Canon machine, follow the flowchart for the communication test
with a non-Canon machine.
3) Handle the problem based on the investigation and test results.
Memo: If a trouble occurs in communication with a non-Canon machine, and if a Canon machine operates properly without any problems,
it is recommended to let the user understand that the non-Canon machine needs to be examined accordingly. Since the cause of the
trouble may exists in communication ability of the machine, contact a relevant service contact point of a non-Canon machine. In
such a case, the information obtained in step 1) will be a help for quick solution to the problem.
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