Canon NP6621, Service Handbook

Page: 19 / 146

2–5
STANDARDS AND ADJUSTMENTS
5) Install the metal fixing of the scanner cable to
the No. 1 mirror mount using two screws
e
(both front and rear).
7 Adjusting the Mirror Position (op-
tical length between No. 1 mirror
and No. 2/3 mirror)
1) Keep the mirror positioning tool at hand.
2) Move the No. 1 mirror mount in the forward
direction, and match the angular hole in the
front side plate and the cable fixing screw
q
.
Figure 2-211
3) Loosen the set screw on the pulley.
4) Attach the mirror positioning tool
w
to the No. 1
mirror mount and the No. 2 mirror mount (both
front and rear).
(front) (rear)
Figure 2-212
Figure 2-213
6) Tighten the set screw of the pulley.
7) Remove the tool (FY9-3009).
8 Adjusting the Scanner Cable
Tension
Pull the tension spring so that both ends of the
cable spring
q
is 34 ±1 mm, and tighten the screw
w
.
Figure 2-214
q
w
34±1mm
9 Orienting the Pick-Up Roller
When installing the pick-up roller
q
, make sure
that the face indicated in Figure 2-215 is toward the
rear.
Figure 2-215
w
q
q
(front) (rear)
Mirror positioning tool (front)
Mirror positioning tool (rear)
(front)
(front)
e
(front) (rear)