<Suspected parts>

Part 5: Maintenance

BJC-7100

6.2.2 Action

a)Error displays

1.Print Position Correction Error

Buzzer: 8 times

ERROR indicator: Blinks twice

<Cause> During initialization, the carriage print position is not corrected. (The differential between the carriage travel in each direction is outside the correction range.)

Carriage unit, carriage belt, carriage cable, carriage shaft, guide rail, idler pulley, logic board

<Measure>

Visually check carriage drive.

OK?

Check for paper jams, wear and tear and removal of carriage belt;

Carriage with faulty idler pulley assembly operation;

Carriage shaft distortion, scratches, insufficient lubrication, etc.

Does the carriage move smoothly when moved manually?

See "4. 2. 2 Carriage unit" (page 5-4)for how to release the carriage lock.

No

Yes

 

 

 

 

 

Service or replace

 

 

 

 

 

 

faulty part.

 

 

Reconnect power supply.

 

 

 

 

 

 

 

 

 

 

Check operation

 

• Does the carriage motor run during initialization?

of carriage drive.

 

 

• Is the carriage drive out of sync?

 

 

 

 

 

 

 

 

• Are there any problems in the carriage belt or idler pulley?

 

 

 

 

• Are there any abnormal noises?

 

 

 

OK?

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*: See "CAUTION" on page 1-14.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measuring point

Sensor

 

Normal value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC1 (MPU)

Open

 

Low level

 

 

 

 

 

 

 

 

Pin No. 28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Closed

 

High level (sensing)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check home position

 

• Check the measuring point while manually moving

sensor.

 

 

the carriage with the power ON. (This is easier with

 

 

 

 

 

the sheet feeder removed.)

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OK?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measuring point

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

Carriage ribbon cable (28pin)

 

 

 

 

 

 

 

 

 

Pin Nos. 6 and 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check carriage cable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

conductivity.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

1

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OK?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace logic board.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace carriage unit.

 

 

 

Replace carriage cable.

 

 

 

 

 

 

 

 

 

 

• Faulty MPU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Faulty PCB

 

• Faulty carriage board.

 

 

 

 

 

 

 

 

 

soldering/conductivity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-16

Page 148
Image 148
Canon QY8-1360-000 manual Action, Measure, Error displays

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