Canon Two-Knife Booklet Trimmer-A1, Руководство по обслуживанию, Страница: 123 / 155

COPYRIGHT© 2002 CANON INC. 2000 CANON BOOKLET TRIMMER-A1 REV.0 FEB. 2002
CHAPTER 5 TROUBLESHOOTING
5-7
E5A3
Main cause The rear edge stopper motor fails to operate normally.
1. It does not reach HP within a specific period of time, after the rear edge
stopper motor starts to operate.
2. It does not reach a specific position within a specific period of time, af-
ter the rear edge stopper motor stars to operate.
Method of
detection
1. When it moves from the start of operation to HP, the rear edge stopper
HP sensor does not go ON within a specific period of time (5 sec).
2. It does not stop operating within a specific period of time (5 sec), after it
stars to operate.
Action to
take
1. Turn off and on the trimmer (i.e., disconnect and connect the power
cable).
2. Turn on and off the host machine.
3. Execute 'rear edge stopper motor test' in service mode to check the op-
eration.
4. Check the contact between the trimmer drive PCB (connector: CN401)
and the trimmer DC controller PCB (connector: J1); if needed, replace
the harness.
5. Check the contact of the rear edge stopper motor relay harness con-
nected to the trimmer drive PCB (connector: CN406); if needed, replace
the harness.
6. Check the contact of the rear edge stopper HP sensor relay harness con-
nected to the trimmer drive PCB (connector: CN406); if needed, replace
the harness.
7. Check the contact of the front door open/closed microswitch MS2 and
the stacker door open/closed microswitch MS3/4; if needed, replace the
harness.
8. Replace the rear edge stopper sensor (PS103).
9. Replace the rear edge stopper motor (M103).
10. Replace the trimmer drive PCB.
11. Replace the DC controller PCB.