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Part 5: Maintenance
4. Home Position
Sensor Error
<Measure>
Visually check the
carriage drive unit
operation.
Correct?
No
Visually check the carriage
motor and paper
feed motor operation.
Correct?
No
Next
page
<Cause>
<Suspected part>
Visually check for disconnected gears, removed parts,
deformation, or jammed paper.
Yes
Repair defective parts or
replace the print unit.
Yes
1. Check the home
position sensor.
2. Replace the control
board.
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) .
The home position sensor cannot detect the carriage.
Home position sensor, carriage motor,
paper feed motor, control board
Figure 5-2 Check Point
5-12
BJC-50
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