E. Fixing System - Canon CLC 1120 Service Handbook

CHAPTER 2 STANDARDS AND ADJUSTMENTS

E. Fixing System

When Replacing the Fixing
1
Heater
Do not touch the surface of the heater.
Reference:
The copier's fixing heater has a specific
orientation (front, rear); be sure to mount
it so that the black lead line is at the rear.
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.
2-24
Dimension
a
|b-c|
b-a
c-a
* Be sure both upper and lower rollers are
sufficiently heated.
Figure 2-48
Measurements*
7.3 ±0.3 mm
0.5 mm or less
0.5 mm or less