Heater; E. Fixing System - Canon CLC 1120 Service Manual

CHAPTER 13 TROUBLESHOOTING

E. Fixing System

When Replacing the Fixing
1

Heater

Do not touch the surface of the heater.
Reference:
You need not orient the copier's fixing
heater (front, rear) in a specific
orientation.
Adjusting the Nip (nut for
2
locking the fixing assembly)
a. Measuring the Nip Width
If you are taking measurements while the
roller is not hot, let the copier complete its
standby period, wait 15 min, and make 20
copies.
b. Taking Measurements
1) Start service mode.
2) Select FUNCTION>FIXING>NIP-
CHK, and press OK.
The nip width is correct if as indicated;
otherwise, use the adjusting nut [1] to
make adjustments.
Caution:
b and c are points 10 to 15 mm from
paper ends.
13-28
COPYRIGHT © 1999 CANON INC.
(feed direction)
Dimension
a
|b-c|
b-a
c-a
* Be sure both upper and lower rollers are
sufficiently heated.
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
b
a
Center of
copy appear
c
Measurements*
7.3 ±0.3 mm
0.5 mm or less
0.5 mm or less
figure 13-248