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Part 5: Maintenance
Previous
Page
Check the pick-up
roller sensor flag
Correct ?
Yes
Check the pick-up
roller sensor.
Correct ?
Yes
Check the paper
end sensor flag.
Correct ?
Yes
Check the
paper sensor.
Correct ?
Yes
END
Pick-Up Roller Sensor
Check for pick-up
roller sensor flag
deformation or
damage.
No
Replace the
pick-up roller.
Measuring
Pin No.
points
PS2
3 and 4
Remove the logic board, then turn on the
power to check the rear of the sensor.
No
Replace the
logic board.
Does it move smoothly when
you move it with your hands?
Is it deformed or damaged?
No
Replace the paper
end sensor flag or
repair/replace a
faulty part(s).
Measuring
Pin No.
points
PS1
3 and 4
Remove the logic board, then turn on the
power to check the rear of the sensor.
No
Replace the
logic board.
5-26
Pick-Up Roller
Sensor Flag
Paper
Sensor Flag
Sensor
Normal reading
Open
Low level
High level (Initial position)
Close
Sensor
Normal reading
Open
Low level (with paper)
Close
High level (no paper)
BJC-5000
Pick-Up Roller
Paper End Sensor
PS2
NO.4
NO.3
PS1
NO.4
NO.3
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