Specifications

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001
CHAPTER 5 TROUBLESHOOTING
5-73
E410
Cause The pickup motor (M3) is faulty.
The pickup roller height sensor 1 (PI8) is faulty.
The pickup roller height sensor 2 (PI9) is faulty.
The pickup roller home position sensor (PI7) is faulty.
The ADF controller PCB is faulty.
Detection The pickup roller height sensor 1 (PI8) and the pickup roller height sensor 2
(PI9) do not generate a signal within 2 sec after the pickup motor has been
driven.
The pickup roller home position sensor (PI7) does not generate a signal
within 2 sec after the pickup motor has been driven.
E420
Cause The backup data cannot be read; or, the data that has been read has an error.
Detection When the copier is turned on, the backup data cannot be read twice; or, the
data that has been read has an error.
T05-504-01b