Canon NP7160 Service Manual page 247

Caution:
a and c represent points 10 mm from both ends of copy paper.
a. Measuring the Nip
Before measuring the nip, wait for 15 min after the end of warm-up and make 20 A4 copies:
1) Set A3 copy paper.
2) Open the copier cover.
3) Execute nip measurement mode (service mode).
The above steps will deliver a measurement sheet like the one shown in Figure 10-224.
Note:
When you execute nip measurement mode (service mode), the copy paper will stop half
way through the delivery slot. It will then be discharged fully in about 15 sec.
COPYRIGHT © 1998 CANON INC.

  
Feeding
direction
Figure 10-224
Dimensions
b
I a - c I
*Be sure both upper and lower rollers are
sufficiently warm before taking measurements.
Table 10-201
CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
c
b
Center of
copy paper
a
Measurements*
4.8 0.3mm
0.5 mm or less
10–17