Canon DADF-B1 Service Manual page 97

CHAPTER 5 TOROUBLESHOOTING
6 Duplexing Registration
Adjustment
1) Start service mode.
2) Select FEEDER>ADJUST>DOCST-RP.
3) Perform steps 3) through 9) under 5.
"Adjusting Registration."
7 Cleaning the Separation Roller
1) Start service mode. (Keep the ADF
closed.)
2) Select FEEDER>FUNCTION>DBLT-
CLN.
3) Place one sheet of copy paper on the
original tray. At this time, place it as if to
push the paper into feeding direction.
4) Press 'OK'.
The copy paper will be picked up halfway,
and the separation roller is rotated idly.
Hold down the paper against the original
pickup tray to prevent it from moving
ahead.
5) In about 5 sec, the separation roller will
stop to rotate automatically. If you have to
stop it before that, press the OK key.
Check to make sure that the notation in the
upper right of the Service Mode screen is
'READY'. If 'SERVICE' is indicated,
press the OK key once again.
6) Open the pickup unit cover, and remove
the copy paper.
5-8
COPYRIGHT © 1999 CANON INC.
8 Cleaning the Registration Roller
To remove paper lint or dirt from the
registration roller, perform the following on a
periodical basis according to the intervals
indicated in the Scheduled Servicing Chart:
1) Shift bits 1, 2, 5, and 6 of the DIP switch
on the ADF controller PCB to ON.
2) Press the push switch. Check to make sure
that the original detection LED turns on.
3) Close the ADF. Check to make sure that
the pickup unit cover and the reversal
delivery unit cover are closed.
4) Open the pickup unit cover so that the
registration roller will rotate 40 sec (in
reverse; it will stop automatically).
5) Put lint-free paper or cloth moistened with
alcohol lightly against the registration
roller.
6) To stop, perform the following:
· Close the pickup unit cover.
· Open the ADF.
· Open the reversal delivery unit cover.
If any of the conditions applies or in 40 sec
after the registration roller started to rotate,
cleaning mode will end automatically.
7) Shift all bits of the DIP switch to OFF.
CANON DADF-B1 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
ON
Figure5-110