Cleaning; Belt Assembly; Sensors - Canon FY8-13FW-000DADF-A1 Service Manual

CHAPTER 3 MECHANICAL SYSTEM
IV. CLEANING
A. Belt Assembly
1) Move the feeding belt in the direction of
the arrow to dry wipe.
Figure 3-401
2) Place a sheet of copy paper whose center is
moistened with alcohol on the original
tray; then, shift bit 6 of the DIP switch
(SW1) on the DADF controller PCB to
ON.
Moisten with alcohol
Figure 3-402
3-30
COPYRIGHT © 1998 CANON INC.
3) Press the push switch(SW3) to execute
cleaning of the separation belt.
4) When cleaning has ended, press the push
switch (SW3), and shift all bits of the DIP
switch to OFF.
5) Mount the DADF controller cover.
B. Sensors
The machine's feeding path is equipped
with two transmission type sensors (original
sensor S1, registration sensor S3) and three
photointerrupers (pick-up sensor S7, delivery
sensor S6, reversal sensor S8).
The light-receiving face of a transmission
type sensor tends to collect more paper lint than
a photointerrupter, possibly leading to
malfunction. The sensors may be cleaned as
follows:
CANON DADF-A1 REV.0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Test sheet
Figure 3-403