Canon NP6320 Service Manual page 129

4. Attaching the Heater and Upper
Fixing Roller
Attach the heater and the upper fixing
roller as in detaching them but in reverse order
while noting the following:
a. Heater
i. Do not touch the surface of the heater.
ii. Make sure that the end showing the
manufacturer's name is to the front.
b. Upper Fixing Roller
i. Wrap the roller with copy paper to pre-
vent soiling or scarring its surface.
ii. Make sure that the end with two C-rings
is to the rear.
iii. Make sure that the two identical gears
are used at the front.
5. Adjusting the Nip Width (tighten-
ing the pressure adjusting nut)
If the nip width is not as shown in Figure
6-214, turn the bolt to adjust it.
Note:
a and c represent points 10 mm from
each end.
Dimension Measure after the upper and
lower rollers have heated up.
b 4.0 ±0.5 mm
|a-c| 0.5 mm or less
Table 6-201
COPYRIGHT © 1999 CANON INC.
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CANON NP6320 REV.0 DEC. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 6 FIXING SYSTEM
Feed
direction b
A3 size
Figure 6-214
c
Center of
copy
a
6-9