Canon CLC 1120 Service Manual page 652

30 E305
· Check the detail code in service mode (COPIER>DISPLAY>ERR).
Detail Codes
Detail code
0001
0002
0004
0008
0010
0020
0040
If multiple errors from above occur at the same time, the detail code will be the sum and indicated in
hexadecimal notation; for example,
If BD error (0001), B shading correction RAM error (0004), and G shading correction RAM error
(0008) occur at the same time, the indication will be
0001 + 0004 + 0010 = 001C.
a. E305=0001
See the descriptions under E100.
b. E305=0002, 0004, 0008/ 0010, 0020
Cause
IP-MAIN PCB
31 E351
Cause
· IP-MAIN PCB
· IP-ECO PCB
· Laser driver
PCB
COPYRIGHT © 1999 CANON INC.
Density conversion RAM error
Detection
BD error (same as E100)
Density conversion RAM
error
B shading correction RAM
error
G shading correction RAM
error
R shading correction RAM
error
Color correction RAM error
Original scanner motor error
Step
1 Is the connection between IP-
MAIN PCB and the IP-MOTHER
PCB/IP-ED PCB/IP-IF PCB
normal?
Step
1 Is the IP-ECO PCB and the IP-
MOHTER PCB connected
securely?
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Detail code
0100
0400
0800
1000
Checks
Checks
Detection
IP-ED PCB RAM error or
absence of connection
IP-PRJ PCB RAM error or
absence of connection
IP-IF PCB RAM error or
absence of connection
Yes/No Action
NO Disconnect and connect
each PCB. Check the
communication cable
between PCBs.
YES Replace the IP-MAIN
PCB.
Yes/No Action
NO Connect the PCBs
properly.
YES Try replacing the
following parts in turns:
· IP-ECO PCB
· IP-MAIN PCB
· Laser driver PCB
13-125