Canon DADF-J1 Service Manual page 209

CHAPTER 5 TROUBLESHOOTING
3) Press the push switch (SW2) on the
ADF controller PCB to start backup
RAM clear mode.
• LED2 will go off.
4) Press the push switch (SW3) five times
in succession.
• LED2 will indicate '0' and go through
its sequence of indication.
The counter data (jam, tray
pickup, manual feed) cannot be
Memo initialized.
5-52
COPYRIGHT © 2001 CANON INC.
J1
FU2
J2
J4
IC1
FU1
SW1
J5
LED2
SW4SW3SW2
J3
J6 J7
SW2
SW3
F05-106-04
2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001
J14
J13
J12
J8 J9 J10 J11