Canon Pixma mp760 User manual

PIXMA MP760

SERVICE

MANUAL

Canon

shall be retained for reference purposes byAuthorized Service Facilities of Canon U.S.A. Its unauthorized use is prohibited.

PIXMA MP760

SERVICE

MANUAL

REVISION 0

PIXMA MP760 H12-4602 120V USA

PIXMA MP760 H12-4603 230V EMB

PIXMA MP760 H12-4604 230V GB

PIXMA MP760 H12-4605 230V EUM

PIXMA MP760 H12-4606 120V CND

PIXMA MP760 H12-4608 230V AUS

PIXMA MP760 H12-4609 230V AE

HY8-13A4-000

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 your region.

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.

another language without the written permission of Canon Inc., except in the case of internal business use.

CANON INC.

Inkjet MFP/FAX Quality Assurance Div.

5-1 Hakusan 7-Chome, Toride-city, Ibaraki 302-8501, Japan

I. MANUAL OUTLINE

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

MP760:

Part 1: Maintenance

Information on maintenance and troubleshooting of the PIXMA MP760

Part 2: Technical Reference

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

MP760

Part 3: Appendix

Block diagrams and pin layouts of the PIXMA MP760

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 - 1 1. MAINTENANCE

1 – 1 1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement

Consumables by Service Engineer

1 - 3 1-2. Customer Maintenance

1 - 3 1-3. Product Life

1 - 4 1-4. Special Tools

1 - 5 1-5. Serial Number Location

1 - 6 2. LIST OF ERROR DISPLAY / INDICATION

1 - 6 2-1. Users Error Messege

1 - 9 2-2. New Error Codes and Recovery Methods

1 - 11 2-3. Warnings

1 - 11 2-4. Troubleshooting by Symptom

1 - 16 3. REPAIR

1 - 16 3-1. Notes on Service Part Replacement (and Disassembling / Reassembling)

1 - 19 3-2. Special Notes on Repair Servicing

1 - 19 3-2-1 Flexible Cable and Harness Wiring, Connection

1 - 21 3-3. Adjustment / Settings

1 - 21 3-3-1 Paper Feed Motor Adjustment

1 - 22 3-3-2 Gear Phase Adjustment

1 - 24 3-3-3 Lift Cam Shaft Ass’y Adjustment

1 - 25 3-3-4 Solenoid Cam Spring Location

1 - 25 3-3-5 Carriage Shaft Clip Location

1 - 26 3-3-6 White Sheet Location

1 - 28 3-3-7 Grease Application

1 - 30 3-3-8 Waste Ink Counter Setting

1 - 30 3-4. User Data Flow

1 - 33 3-5. Service Switches

1 - 33 3-5-1 Hardware Switches

1 - 33 3-5-2 Service Data Setting

1 - 34 3-5-3 Service Data Registration / Setting Method

1 - 35 3-5-4 Service Data Flowchart

1 - 39 3-5-5 Explanation of service data

1 - 40 3-5-6 New SSSWs / parameters added to this model

1 - 42 3-5-7 SSSW Default Setting

1 - 60 3-6. Test Mode / Factory Mode

1 - 60 3-6-1 Test Mode / Factory Mode Overview

1 - 61 3-6-2 Test Mode Menu

1 - 62 3-6-3 Factory Mode

1 - 63 3-6-4 Operation Panel Test

1 - 64 3-6-5 Print Test

1 - 66 3-6-6 CD-R Calibration (230V only)

1 - 66 3-6-7 IRDA test

1 - 66 3-7. Upgrading the version of SPCNT Flash ROM

1 - 67 3-8. Verification Items

1 - 67 3-8-1 EEPROM information print

1 - 69 4. Cleaning Your Machine

1 - 69 4-1 Caution

1 - 69 4-2 Cleaning the Exterior

1 - 69 4-3 Cleaning the Scan area

1 - 70 4-4 Cleaning the Interior

1 - 70 4-5 Cleaning the Paper Feed Rollor

1 - 71 4-6 Cleaning the Bottom Plate

1 - 72 5. Transportation

Part 2: TECHNICAL REFERENCE

2 - 1 1. New Technologies

2 - 3 2. Cleaning Mode and Amount of Ink Purged

2 - 5 3. Print Mode

2 - 9 4. FAQ (Problems Specific to the MP760 and Corrective Actions)

Part 3: APPENDIX

3 - 1 1. Wiring Diagram

3 - 2 2. Specification

Part 1

Maintenance

1 - 1

1. MAINTENANCE

1-1 Adjustment, Periodic Maintenance, Periodic Replacement Parts, and

Replacement Consumables by Service Engineer

(1) Adjustment

Adjustment Timing Purpose Tool Approx

time

ALL CLEAR

(EEPROM

initialization)

AtSPCNTBOARDASS’Y

replacement To initialize settings other

than the following

-Service/User soft SW

-Various counter

-TYPE Setting

None

To initialize

the settings,

select #8

CLEAR –ALL

in the service

mode

1 min

TYPE settings

(EEPROM

settings)

-AtSPCNTBOARDASS’Y

replacement

-AtexcecutingAllclear

-To set the type

-To set the destination None

Select #5

TYPE in the

service mode

Power SW

OFF/ON*1

1 min

Waste ink

counter resetting

(EEPROM

settings)

At bottom case unit

replacement

At ink absorber INK

ABSORBER

(HY7-2885/2886/2887/28

88/2889/2890/2891/2953)

To reset the waste ink

counter.

None

Select #7

PRINTER in

the service

mode,

and input “0”

at #5 INK ABS

CAPA.

1min

Waste ink

counter setting

(EEPROM

initialization)

At SPCNTBOARDASS’Y

replacement Waste ink counter setting None

Print out the

EEPROM

information,

and select #7

PRINTER in

the service

mode.

Then, register

at #5 INK ABS

CAPA.

1 imn

CD-R sensor /

automatic print

head alignment

sensor correction

(EEPROM

settings)

(230V only)

At SPCNTBOARDASS’Y

replacement

At carriage unit

replacement

To correct the CD-R and

automatic print head

alignment sensor.

None.

(Correction

performed

through

FACTORY

MODE-[2]PRI

NTER-SHUK

KEN at the

same time as

printing.)

1 min

1 - 2

Adjustment Timing Purpose Tool Approx

time

Print head

alignment

- At print head

replacement

- At SPCNTBOARDASS’Y

replacement

To ensure accurate dot

placement.

None.(Main

body

buttons)

Computer

(settings via

the printer

driver)

2 min

Paper feed motor

position

adjustment*

At paper feed motor unit

replacement

To adjust the belt tension.

(Position the paper

feed motor so that the belt

is stretched tight.)

None

For the

adjustment,

refer to [3-3

Adjustment/Se

ttings

(1) PAPER

FEED

MOTOR

Installation

Adjustment.

2 min

Grease

application

-At carriage unit

replacement

-At chassis' upper gear

replacement

-At LIFT CAM SHAFT

replacement

-To maintain sliding

properties of the carriage,

carriage shaft, and shaft

lift.

-To protect the chassis'

upper gear.

-To LIFT CAM SHAFT

replacement

-FLOIL

KG-107A

-MOLYKOTE

HP300

1 min

Note: DO NOT loosen the red screws on both sides of the main chassis, securing the carriage shaft

positioning.

*1: When SPCNT BOARD ASS’Y isreplaced, be sure to select the settings of [#8CLEAR]-[ALL]

and [#5TYPE] in Service Mode, and turn thepower OFF/ON with the Power button (Software

Power: OFF/ON). DO NOT turn the power OFF/ON by removing and inserting the power code

(Hardware Power: OFF/ON). In this case, data may not be written correctly.

*2: Red screws of paper feed motor

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

feed motor unit.

(2) Periodic maintenance

Adjustment Timing Purpose Tool Approx.

time

None

1 - 3

(3) Periodic replacement parts

Adjustment Timing Purpose Tool Approx.

time

None

(4) Replacement consumables

Adjustment Timing Purpose Tool Approx.

time

None

1-2 Customer Maintenance

Adjustment Timing Purpose Tool

Approx.

time

Print head

alignment At print head

replacement. To ensure accurate dot

placement. None

Main body

buttons

Computer

(automatic

settings

via the printer

driver)

3min

Print head cleaning

When print quality is

not satisfying.

To improve nozzle

conditions.

None

Main body

buttons

Computer

(settings via the

printer driver)

1 min

Print head deep

cleaning

When print quality is

not satisfying, and not

improved by print head

cleaning.

To improve nozzle

conditions.

None

Computer

(setting via the

printer driver)

2min

Ink tank

replacement

When an ink tank

becomes empty.(No ink

error) - -

2min

Paper feed roller

cleaning

When paper does not

feed properly.

To clean the paper feed

rollers.

None

Main body

buttons

2min

CD-R print position

adjustment

At CD-R printing, when

necessary

To correct CD-R print

position.

None

Computer

(application

software)

2min

Bottom plate

cleaning

When the back side of

the paper is smeared

To clean the platen ribs.

None

Computer

(application

software)

1min

1 - 4

1-3 Product Life

(1) Main body

Specified print volume (a), (b), or the years of use (c), whichever comes first.

(a) Scanning Section: 15,000 pages

(b) Printing Section: 18,000 pages

Copy Print

1,500 character pattern + Post card

Address printing

3,420 pages 3,960 pages

1,500 character pattern - -

A4, 7.5% duty per color pattern 2,520 pages 2,880 pages

A4, photo, borderless printing 180 pages 360 pages

L, photo, borderless printing 1,080 pages 1,980 pages

Color

Postcard, photo, borderless printing 360 pages 1,260 pages

5 years of use

(2) Ink tank

BCI-3eBK: 900 pages (JEIDA STD patternJ1, plain paper standerd mode)

740 pages (Black 1,500 character pattern, plain paper / standard mode)

1,300 pages (ISO JIS-SCID No. 5 / plain paper / standard mode)

BCI-6C: 550 pages (ISO JIS-SCID No. 5 / plain paper / standard mode)

BCI-6M: 430 pages (ISO JIS-SCID No. 5 / plain paper / standard mode)

BCI-6Y: 360 pages (ISO JIS-SCID No. 5 / plain paper / standard mode)

BCI-6BK: 2,000 pages (ISO JIS-SCID No. 5 / plain paper / standard mode)

1-4 Special Tools

Name Tool No. Application Remarks

MOLYKOTE

HP300

CK-8012-000 To be applied to the chassis' upper gear,

and to the sliding portion of the shaft lift.

New

FLOIL KG-107A QY9-0057-000 To be applied to the sliding portion of the

carriage and the bearing portion of the

carriage shaft.

In common wit

other models.

1 - 5

1-5 Serial Number Label Location

On the right side of the backside in the bottom case (close to the rating plate)

Figure1-1 Serial Number Label Location

1 - 6

2. LIST OF ERROR DISPLAY / INDICATION

User error messages

Look for the applicable error message and execute the appropriate countermeasures.

Error Codes

As for the causes and countermeasures, only the error codes that are newly incorporated in the unit remedies

unique to the product are included in New Error Codes and Recovery Methods. For the causes and

countermeasures of other error codes, refer to the separate G3/G4 Facsimile Error Code List (Rev. 2).

Service error code output

When service data #1 SSSW SW01 Bit0 is set to “1”,the following service error codes are displayed when

an error occurs.

2-1 User’s error messege

"Print head does not work. Clear foreign object from print head. Turn off and on"

Printing position correction failed

Cause: Carriage movement prevented by one of the following.

Damaged shaft.

Parts deformed. (Carriage or guide frame)

Insufficient grease.

Solution: Replace the shaft.

Replace the deformed parts.

Apply more grease.

Cause: Bi-directional print displacement correction failed because the carriage motor is

out of step, or some similar reason.

Solution: Replace the carriage motor.

Home position error

Cause1: Tried to stop the carriage unit that has been moving or to move the carriage unit at a pouse by

force.

Solution1: Do not touch the carriage unit other than cartridge replacement position.

Cause2: Foreign body in carriage section.

Solution2: Open flatbed ass’y and remove the foreign body.

Cause3: Loose carriage belt.

Solution3: Replace carriage unit

Cause4: Carriage motor does not work.

Solution4 (1) Switch power OFF/ON.

(2) Replace carriage motor.

Cause5: The position of the carriage cannot be detected (due to smears on the carriage

encoder film or SPCNT board failure).

Solution5: (1) Switch power off/on.

(2) Wipe the carriage encoder film with a cloth soaked with alcohol.

(3) Replace the carriage encoder film.

(4) Replace the SPCNT board.

1 - 7

Note:

This error message means the same as service error codes ##338 and ##340. When this error occurs in

this model, it is not treated as a service error, but as a user error, and the error message is displayed.

“Scanning Unit (Printer Cover) is open.”

Cause: You opened the scanning unit (printer cover) during an operation.

Solution: Close the scanning unit (printer cover).

Cause: Damaged scanner open arm ass’y, damaged scanner sensor arm, or SPCNT board ass’y failure.

Solution: Replace the scanner open arm ass’y, replace the scanner sensor arm, or replace the SPCNT board

ass’y.

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

Cause: The paper is jammed.

Solution: Clear the paper and press [OK].

“ErrorTurn the machine off and on”

Cause: The printer’s internal unit has malfunctioned.

Solution: Clear the paper.

Press [OK]

Reattachment the Print head.

Switch power off/on.

Check the service error code and refer to an appropriate solution.

“The machine's memory is full. Delete documents, or print from PC if the data is image.”

Cause: The machine’s memory is full because you tried to copy a very detailed document.

Solution: Divide the document and copy each part separately.

“Cannot write to memory card. (displayed as [write-protect error]”

Cause: The memory card inserted in the card slot is write-protected.

Solution: Release the write protection of the memory card.

Cause: The setting [Memory Card Protect] is set to [ON].

Solution: Set [Memory Card Protect] to [OFF], and connect the USB cable again.

“?” Cannot read from memory card.

Cause: The question mark [?] indicates that the datamay be a JPEG file containing an image with the

resolution size: 6400 dpi x 6400 dpi or greater. If the data is not in the JPEG format, it is not

included in the number of images.

Solution: Print from the computer.

1 - 8

“Error during scanning memory card. Pull the card and turn the machine off and on.”

Cause: Data in the memory card cannot be accessed.

Solution: Check the data in the memory card from a digital camera.

Check the connection between the multi-card board and the SPCNT board.

Replace the Multi Cards Board.

Replace the SPCNT board.

“There is no images in memory card”

Cause: The image data in the memory card are not in the file formats that are valid in this machine.

Solution: Print from the computer.

1 - 9

2-2 New Error Codes and Recovery Methods

Those error codes that have been added starting with the product and those error codes for

which remedies unique to the product are offered are shown together with causes and

remedies, where applicable.

##341 Maintenance jet waste ink capacity full

Solution: Replace the waste ink absorber as follows in the error occurs:

(1) Select [7] PRINTER TEST in the service mode and select [5] INK ABS CAPA under the [7], then

input “0”.

(2) Check to make sure that no image exist in memory; then, turn off the power, remove the appropriate

parts, and replace the waste ink absorber.

##342 Cleaning absorption waste ink capacity full

Solution: Replace the waste ink absorber as follows in the error occurs:

(1) Select [7] PRINTER TEST in the service mode and select [5] INK ABS CAPA under the [7], then

input “0”.

(2) Check to make sure that no image exist in memory; then, turn off the power, remove the appropriate

parts, and replace the waste ink absorber.

##343 Ink detection waste ink capacity full

Solution: Replace the waste ink absorber as follows in the error occurs:

(1) Select [7] PRINTER TEST in the service mode and select [5] INK ABS CAPA under the [7], then

input “0”.

(2) Check to make sure that no image exist in memory; then, turn off the power, remove the appropriate

parts, and replace the waste ink absorber.

##352 Printer control EEPROM head information error

Cause: The EEPROM for printer control is faulty.

Solution:

(1) Turn off and then on the power.

(2) Turn off the power, and replace the printhead.

(3) Replace the SPCNT board.

NOTE:

In the presence of ##352, the carriage unit will not move to printhead replacement position even

when the inner cover is opened. Moreover the carriage will not be locked in position even when the

power is turned off. When replacing the printhead, be sure to turn off the power, and draw out the

carriage before replacement.

1 - 10

##355 Lit-up motor for CD-R print malfunctioned

Cause: In performing a CD-R print, the motor to lift up the carriage shaft is malfunctioned.

Solution:(1) Turn off and then on the power.

(2) Check the connection from the SHEET FEED unit to the SPCNT board ass’y (JPM1).

(3) Replace the SHEET FEEDASS’Y.

(4) Replace the SPCNT board.

##356 ASF cam sensor error

Cause: An error occurs at the ASF cam sensor in the ASF (Auto Sheet Feeder) unit.