Canon NP6317 Service Handbook page 74

CHAPTER 6 TROUBLESHOOTING FEEDING PROBLEMS
2. Wrinkles
Cause/Problem
Procedure
area
Pick-up assembly
Copy paper
Paper guide
Roller
pressure
Upper and
lower fixing
rollers
6-6
1 Switch the power OFF while the copy
paper is passing along the feeder. Are
there any wrinkles in the copy paper at
this point? Is the paper skewed?
2 Does the trouble disappear when new
copy paper is used?
3 Is any foreign matter such as toner ad-
hering to the paper guide?
4 Is the height of the paper guide cor-
rect?
5 Is the roller pressure (nip width) within
the standard?
Check Result Action
Yes 1.Check the pick-up as-
sembly.
2.Check the registration
rollers.
Yes The paper may be ab-
sorbing moisture. In-
struct the user in the cor-
rect paper storage
method.
Yes Clean the paper guide
with MEK.
No Adjust the height of the
paper guide.
No Adjust the nip width.
Yes Replace the upper and
lower fixing rollers (both
at the same time).