Canon DADF-R1, Service Manual

Page: 156 / 222

Chapter 5
5-8
5.2.4.10 Post-Registration Roller Paper
Sensor
0013-3785
Do not use a solvent (alcoholfamily or ketone
family) to clean the prism face.
It is made of acrylic resin, and contact with solvent
can discolor it, adversely affecting its operation.
1) Open the pickup upper cover.
2) Remove the reversing guide.
3) Clear the surface of the prism of the post-
registration roller paper sensor.
F-5-22
5.2.4.11 Reversal Paper Sensor
0013-3786
1) Remove the reversing guide.
2) Remove the 2 screws [1], and detach the reversal
sensor [2].
F-5-23
3) Clean the filter face of the reversal sensor [1]
using a blower brush.
F-5-24
4) Open the DADF fully.
5) While opening the pickup middle guide found to
the left of the feeding belt, aim a blower brush
against the prism of the reflecting face of the
reversal sensor in view in the rear to clean.
F-5-25
Surfaces
to clean
[1]
[1] [2]
[1]