Canon BJC 50 Service Manual - Page 152

Canon BJC 50 - Color Inkjet Printer Manual

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Part 5: Maintenance BJC-50 The home position sensor cannot detect the carriage. Home position sensor, carriage motor, paper feed motor, control board 4. Home Position Sensor Error Visually check the carriage drive unit operation. • Visually check for disconnected gears, removed parts, deformation, or jammed paper. Correct? No Visually check the carriage motor and paper feed motor operation. Yes Figure 5-2 Check Point Repair defective parts or replace the print unit. Correct? No Yes 1. Check the home position sensor. 2. Replace the control board. Next page When replacing the control board, check the quantity of waste ink absorbed in the waste ink absorber in the printer base unit, and reset the quantity of waste ink absorbed in the EEPROM. See Part 3: 3.6 EEPROM Data Setting (page 3-23). 5-12

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<Cause>
The home position sensor cannot detect the carriage.
<Suspected part>
Home position sensor, carriage motor,
paper feed motor, control board
<Measure>
When replacing the control board, check the quantity of waste ink
absorbed in the waste ink absorber in the printer base unit, and reset the
quantity of waste ink absorbed in the EEPROM.
See
Part 3:
3.6 EEPROM Data Setting (page 3-23)
.
Part 5: Maintenance
BJC-50
5-12
Correct?
Yes
No
Visually check the
carriage drive unit
operation.
Visually check the carriage
motor and paper
feed motor operation.
Correct?
Yes
No
Repair defective parts or
replace the print unit.
1. Check the home
position sensor.
2. Replace the control
board.
•
Next
page
Visually check for disconnected gears, removed parts,
deformation, or jammed paper.
4. Home Position
Sensor Error
Figure 5-2 Check Point