CHAPTER 14 TROUBLESHOOTING
14-86
COPYRIGHT © 1999 CANON INC. CANON imageRUNNER 400/330 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
29 E677 (The communication between the printer board and the machine has a fault.)
Cause
PCB
Printer board
PDL 1/F board,
System
motherboard,
Image processor
PCB
Action
Correct the connection.
End.
Replace the PDL I/F
board, system
motherboard, and image
processor PCB.
Step
1
2
Yes/No
YES
YES
NO
Check
Check the connection between the
printer board and the PDL I/F
board and the system motherboard.
Is any of the pins bent or otherwise
not normal?
Replace the printer board. Is the
problem corrected?
30 E710 (The IPC communication chip on the image processor PCB has a fault.)
Cause
Image processor
PCB
Action
End.
Check to make sure that
the image processor PCB
is free of dust or foreign
matter; then, replace the
image processor PCB.
Step
1
Yes/No
YES
NO
Check
Turn off and then on the main
power supply. Is the problem
corrected?
31 E711 (IPC communication has a fault.)
32 E712 (The communication with the feeder has a fault.)
33 E713 (The communication with the sorter has a fault.)
34 E716 (The communication with the pedestal has a fault.)
Cause
Cable
Cable
Options print PCB
Image processor
PCB
Action
End.
Correct the connection.
Replace the cable.
Replace the options print
PCB.
Replace the image
processor PCB.
Step
1
2
3
4
Yes/No
YES
YES
NO
YES
NO
Check
Turn off and then on the main
power. Is the problem corrected?
Disconnect and connect the cable
connecting the accessories. Is the
problem corrected?
Is the continuity of the cable
normal?
Is there an output of 24 VDC at
J143-1/J143-2 and J142-1/1442-2?
(J142 and J143 are used in
common.)