Canon FINISHER - D1 Service Manual page 147

2) When the tray auxiliary plate is retracted
before the sheets are released, the sheets
will hang still farther, causing their edges
to come into contact with the existing
sheets on tray B as shown in Figure 5-127.
Figure 5-127
3) When the stack is released while the edges
of the sheets are in contact with the exist-
ing sheets, the bottom sheets are likely to
roll down and back between stacks as
shown in Figure 5-128.
Figure 5-128
COPYRIGHT © 1999 CANON INC. CANON FINISHER - D1 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 TROUBLESHOOTING
c. Points to Note for Servicing
If the condition described in b. is noted,
turn over the stack of sheets inside the cas-
sette, and make copies.
• If the stacks are deposited normally,
end the work.
• If curling has increased after turning
over the stack of paper inside the cassette,
turn it back, and select downward curl
mode.
• If curling has decreased but the stacks
are not deposited properly as shown in
Figure 5-125, select downward curl mode.
d. Selecting Downward Curl Mode
1) Turn off the copier.
2) Remove the screw, and detach the PCB
cover. Then, shift bit 3 of SW107 on the
finisher controller PCB to the ON position
as shown in Figure 5-129.
3) Mount back the PCB cover with the
screw, and turn on the copier.
Figure 5-129
For bits other than
bit 3, use the
settings specific to
the model and the
mode.
5-11