Adjusting The Nip - Canon NP7160 Service Manual

  

12. Adjusting the Nip

The nip is appropriate if it is as indicated
in Table 6-201.
If it is not as indicated, relocate the
tension spring [1].
Note:
a and c are points 10 mm from both
ends of copy paper.
Feeding
direction
Figure 6-226
a. Measuring the Nip
When the copier finishes warm-up, wait
for 15 minutes. Then, make 20 A4 copies
before measuring the nip.
1) Place A3 copy paper in the multifeeder,
and select the multifeeder as the source of
paper.
2) Open the copyboard over.
3) Execute service mode 406 (fixing nip
check).
• The copy paper will be stopped when its
leading edge is about 100 mm, and will
automatically be discharged (See Figure
6-226).
COPYRIGHT © 1998 CANON INC.
c
b
Center of
copy paper
a
CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 6 FIXING SYSTEM
[1]
Figure 6-225
Dimensions
b
I a - c I
*Be sure both upper and lower rollers are
sufficiently warm before taking measurements.
Table 6-201
[1]
Measurements*
4.8 0.3mm
0.5mm or less
6–15