Canon BJC-3000 Service Manual page 77

BJC-3000
Previous
Page
Paper end sensor arm
check
Correct?
Yes
Paper sensor check
Correct?
Yes
Visual check of the ASF
drive gear parts in the
purge unit
Correct?
Yes
ASF gear position
adjustment
END
Pick-up Roller
Sensor Flag
Check with paper to verify that it moves smoothly.
Check for deformation or damage.
No
Replace paper end
sensor arm
Measuring points Sensor
IC201
Opened
Pin No.203 Closed
Check the paper end sensor arm with paper while the power is
turned on.
No
Replace the control
board
Check for any gear dislocation, missing cogs, parts damage and
deformation.
No
Replace the purge unit
See Part 2: 2.5.5 When the ASF gear initial position
adjustment is required (Page 2-15).
4-13
Part 4: Troubleshooting
ASF Paper Feed Path
Paper
Paper End Sensor
Pick-up Roller
Normal Reading
Low level (with paper)
High level (without paper)