Fixing System - Canon iR1600 Service Manual

2.2 Fixing System

2.2.1 Checking the Fixing Roller Pressure (nip)
The machine is not designed to allow adjustment of the nip, but an inappropriate nip can
cause fixing faults; be sure to check the nip of the fixing assembly as follows:
1) Make a solid black copy on A3 or 11x17 paper.
2) Put the output in the multimeter tray with the black side facing up.
3) Press the Start key, and turn off the power switch as soon as the leading edge of paper
reaches the delivery tray. About 10 sec thereafter, remove the paper from h machine.
4) Measure the width of the area indicated (where toner is glossy), and check to make sure
that it is as indicated:
• middle at a : 2.9 to 4.6 mm
• left/right at b and c : 3.5 mm or more
• left/right difference ( b - c) : 0.5 mm or less
• middle edge difference (b - a, c - a) : 0.5 mm or more
(feed direction)
COPYRIGHT© 2002 CANON INC.
10mm
(middle of
paper)
10mm
F13-202-01
2000 CANON iR1600/iR2000 REV.1 JAN. 2002
CHAPTER 13 TROUBLESHOOTING
c
a
b
13-9