Canon Booklet Trimmer-A1 Service Manual page 121

E5A1
Main cause The holder motor fails to operate normally.
1. When it moves down, it does not reach the lower limit sensor within a
2. When it moves up, it does not reach the holder upper limit sensor within
Method of
detection
1. When it moves from the start of drive to the lower limit, the holder lower
2. When it moves from the start of drive to the upper limit, the holder up-
Action to
take 1. Turn off and on the trimmer (i.e., disconnect and connect the power
2. Turn off and on the host machine.
3. Execute 'holder motor test' in service mode to check the operation.
4. Check the contact between the trimmer drive PCB (connector: CN401)
5. Check the contact of the holder motor relay harness connected to the
6. Check the contact of the holder upper limit/lower limit sensor relay har-
7. Check the contact of the front door open/closed microswitch MS2 and
8. Adjust the position of the holder upper limit sensor (PS110) or the lower
9. Replace the holder upper limit sensor (PS110) or the holder lower limit
10. Replace the holder motor (M106).
11. Replace the trimmer drive PCB.
12. Replace the DC controller PCB.
COPYRIGHT© 2002 CANON INC.
specific period of time, after the holder motor starts to rotate.
a specific period of time, after the holder motor starts to rotate.
limit sensor does not go ON within a specific period of time (3 sec).
per limit sensor does not go ON within a specific period of time (3 sec).
cable).
and the trimmer DC controller PCB (connector: J1); if needed, replace
the harness.
trimmer drive PCB (connector: CN405); if needed, replace the harness.
ness connected to the trimmer drive PCB (connector: CN404); if needed,
replace the harness.
the stacker door open/closed microswitch MS3/4; if needed, replace the
harness.
sensor (PS111).
sensor (PS111).
2000 CANON BOOKLET TRIMMER-A1 REV.0 FEB. 2002
CHAPTER 5 TROUBLESHOOTING
5-5