Canon DADF-J1, Service Manual

Page: 227 / 271

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001
CHAPTER 5 TROUBLESHOOTING
5-70
5 Self Diagnosis
5.1 Outline
The microprocessor on the DADF’s ADF controller PCB is equipped with a function to
check the condition of the machine. When it detects a fault, it will communicate the fact to
the copier in the form of a code. The communication may be any of the following three,
which may be checked by referring to the Original Set indicator or LED2 on the ADF con-
troller PCB.
Fault
Alarm
Jam
Error
Original Set indicator
Flashing at intervals of 240 msec
Flashing at intervals of 160 msec
Flashing at intervals of 80 msec
LED2 indication (code)
Not used
T05-501-01
An alarm code or a jam may be checked in the copier’s service mode. In response to a
fault, the copier’s display will indicate its presence in the form of an error code.
F05-501-01
< JAM >
01 0202 1707 1708 010B
010B
020A
0
0
0
7
7
7
2
2
2
7
0
0
11 A4
A4
A4
A4
9
7
3
0
0
0202 1704 1706
0202 1703 1703
0202 1611 1623 1400
0202 1611 1611 1400
0202 1533 1534 1400
- - - -
- - - -
- - - -
- - - -
- - - - -
- - - -
- - - -
- - - -
- - - - - -
- - - - - -
- - - - -
- - - - -
- - - - -
- - - - -
-
-
-
02
03
04
05
06
07
08
< 1/7 > < READY >
Display I/O Adjust Function Option Test Counter
Jam code
'1'indicates a jam
in the machine.