Canon GP160DF Service Manual page 239

With the mirror positioning tool fitted in the holes shown below, tighten the optical
unit wire pulley's hexagonal fixing nut.
for rear use
b) Adjustment of distance between No. 1 and No. 2 mirror mounts
With the optical system wire fixing tool for No. 1 mirror mount loosened, follow the
procedures described below to adjust the distance between No. 1 and No. 2 mirror
mounts, and then tighten the fixing tool.
This adjustment should be performed after the operation to adjust the position of No.
2 mirror mount, as described above.
COPYRIGHT © 1999 CANON INC.
Figure 13-106
Screw
Fixing tool
Figure 13-107
CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
for front use
Screw
Fixing tool
13-5