COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
13-15
CHAPTER 13 TROUBLESHOOTING
C. Image Formation System
1
Adjusting the Height of
Charging Wires
The height (position) of the charging wire
of each charging assembly may be adjusted by
turning the screw found behind the assembly.
A full turn of the screw will shift the charging
wire by about 0.7 mm.
You cannot, however, change the height
of the wire of the internal static eliminator,
external charge eliminator, separation
charging assembly or the post-cleaning
charging assembly.
Figure 13-217
2
Points to Note about the
Photosensitive Drum
a.
The photosensitive drum is vulnerable to
strong light, and exposure to strong light
for an appreciable period of time will lead
to white spots or black bands on copies.
Whenever you have removed the
photosensitive drum from the copier, be
sure to wrap the light-blocking sheet (or
five to six sheets of fresh
paper
) around it,
and keep it in a dark place.
b.
If you are installing a new photosensitive
drum, be sure to perform the following:
1) Install the new photosensitive drum.
At this time, be sure to mount it so
that the lot No. label attached inside it
is toward the front of the copier.
2) Mount the primary charging
assembly, pre-cleaning charging
assembly, photosensitive drum
cleaner assembly, and developing
assemblies.
3) Coat the No. 2 blade of the black
toner concentration sensor evenly
with drum cleaner lubricant (TKN-
0480).
10.5
17.0
17.0
Primary
charging
assembly
Separation
charging
assembly
External
charging
assembly
4 mm (approx.)
Charging
assembly
Height of charging wire (mm)
Range
4) Coat the blade of the photosensitive drum cleaner assembly with drum cleaner lubricant
(TKN-0480).
5) Clean the black toner concentration sensor, use a flannel cloth, moistened with and then
well wrung. Mount the sensor.
The reason for using water is to remove charges from the sensor window of the
black toner concentration sensor. (The presence of charges can attract toner to
the sensor window)
After cleaning the sensor window with water, do NOT leave droplets of water on
it, also do NOT dry wipe it.
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