Canon Booklet Trimmer-A1 Service Manual page 127

E5A7
Main cause The communication between the trimmer CPU and the finisher CPU is
faulty.
• The trimmer does not respond to the finisher within a specific period of
Method of
detection
• No response signal from the trimmer is detected within a specific period
Action to
take 1. Turn off and on the trimmer (i.e., disconnect and connector the power
2. Turn off and on the host machine.
3. Check the connection between the trimmer DC controller PCB (connec-
4. Check the output of the power supply unit; as needed, replace it.
5. Replace the DC controller PCB.
COPYRIGHT© 2002 CANON INC.
time, after the finisher sends a command to the trimmer.
of time (2 sec) after the finisher sends a command to the trimmer (detec-
tion on the finisher side).
cable).
tor: J5) and the finisher; if needed, replace the harness.
2000 CANON BOOKLET TRIMMER-A1 REV.0 FEB. 2002
CHAPTER 5 TROUBLESHOOTING
5-11