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9) Remove
the E-ring, and remove
the
10) !Kbve
the C-ring, and remove the two
gears.
@ E-ring
@ Gear
0
C-ring
@ Gear
Figure 4-73
11) Unscrew the two screws, and remove
the bearing.
Note that the bearing
is
being pressed by the lower fixing roller,
making it difficult to remove. It can be
removed more easily by pushing down
on the upper fixing roller when remov-
ing it.
@
Screws
@ Bearing
Figure 4-74
4 - 22
12) while compressing the pressure spring
of the lower fixing roller with a screw-
driver, remove the upper fixing roller.
Figure 4-75
13) Remove the lower fixing roller.
,_
4. Installing
the Upper Fixing Heater
Installing the upper fixing heater is
the reverse of removing it. Be careful of
the following points, however.
a. Handling the heater
(1) To protect the surface of the heater from
damage, it should be wrapped in a sheet
of copy paper.
(2) Do not touch the heater with bare hands.
If there are fingerpints, skin oil, etc., on
the
tube,
clean
it thoroughly
using
solvent.
(3) Install the upper fixing roller so that the
end with the two C-rings is at the rear.
(4) The front gear of the upper fixing roller
actually consists of two ide,ntical gears
5.
installed together.
-:
Adjusting
the Nip Width
(tightening
the pressure adjustment nuts)
The nip width must be no more than
the dimension indicated in Table 4-l.
If
it exceeds this value, adjust it with the
nuts.
Figure 4-76
COPVAIGHT
0
1998 CANON INC.
CANON NP~1015/1215S
AN.0
OCT. 1988 PGINTEG
IN JAPAN [IMPGlMf
AU JAPONI
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