Canon BJC-3000 Service Manual page 75

BJC-3000
9. ASF Sensor
Error
<Measures>
Visually check pick-up
roller
OK?
Yes
ASF gear position
adjustment
Error recurred ?
Yes
1.Replace the purge
unit
2.Replace the control
board
<Cause> · The pick-up roller does not rotate.
· The LF roller drive does not switch properly.
<Suspected Parts> Purge unit, control board, faulty ASF gear
· Check for any cracks or chips on the pick-up roller
sensor flag.
No
Replace the pick-up
roller
· ASF gear adjustment properly executed?
· Remove the ASF gear and re-execute the adjustment.
See Part 2: 2.5.5 When the ASF gear initial position
adjustment is required (Page 2-15)
No
END
4-11
adjustment
Part 4: Troubleshooting