Chapter 6 Troubleshooting; Adjustments; Electrical System (Finisher Unit) - Canon FINISHER-C1 Service Manual

I. ADJUSTMENTS
A. Electrical System (finisher
unit)
1. Adjusting the Height Sensor (PS1)
Perform the following adjustments when-
ever you have replaced the finisher controller
PCB or the height sensor (PS1).
1) Set SW1 on the finisher controller as indi-
cated.
ON
1
Figure 6-101
2) Put blank plain paper (A4 or LTR) on all
trays.
3) Press SW2 on the finisher controller PCB.
A press causes the finisher to execute au-
tomatic adjustment, in which the tray unit
will shift tray 1, tray 2, and then tray 3 in
sequence.
• At the end of adjustment, trays will return
to home position.
• During adjustment, LED 1 flashes. At the
end of adjustment, LED1 turns and re-
mains on.
• If automatic adjustment fails, the mecha-
nism stops while the tray in question is
being adjusted. (At the same time, LED1
turns off.)
4) Shift all bits on SW1 to OFF*, and turn
off the copier once.
*If you are disabling the manual feed tray
height control mode, set bit 2 on SW1 to
ON.
2. Adjusting the Alignment Position
If you have replaced the finisher control-
ler PCB or if an alignment fault occurs, make
the adjustments that follow. Performing the
steps will affect all paper sizes.
1) Remove the rear cover of the finisher unit.
2) Set SW1 of the finisher controller PCB as
indicated.
COPYRIGHT © 1998 CANON INC.
2 3 4
FINISHER-C1/SADDLE FINISHER-C2 REV. 0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 6 TROUBLESHOOTING

ON
1 2
Figure 6-102
3) If you are using A4 paper, press SW2 on
the finisher controller PCB. If you are us-
ing LTR paper, on the other hand, press
SW3 on the finisher controller PCB.
• A press on SW2/3 will open the swing
guide and cause the alignment plate to
move to A4/LTR position.
4) Place 10 sheets of A4/LTR paper between
the alignment plate and the guide plate,
butting them against the stoppers.
5) Press SW2 or SW3 on the finisher control-
ler PCB, and butt the alignment plate
against the sheets.
• A press on SW2 will shift the alignment
plate to the front in increments of 0.35 mm.
• A press on SW3 will shift the alignment
plate to the rear in increments of 0.35 mm.
Alignment plate
A4/LTR paper
Guide plate
Figure 6-103
3 4
Shift by SW3
Shift by SW2
Stopper
Stopper
6-1