Canon NP6621 Service Handbook page 61

15
16 The leading edge of the copy is displaced.
17
Cause Step
Original 1 Is the original set correctly?
Copy paper 2 Is the copy paper of a type recom-
mended by Canon?
Pick-up roller, 3 Have the pick-up roller and the
Separation separation pad of the cassette holder
pad in which the leading edge displace-
ment occurs reached their estimated
Cassette, lives?
Paper guide
plate
4 Does each of the registration rollers
rotate normally?
Registration 5 Perform registration (leading edge
margin) adjustment. Is the problem
corrected? (service mode No. 305; p.
7-9.)
Checks Yes/No Remedy
NO Set the original correctly.
NO Try recommended paper; if
the results are good, advise
the user to use recom-
mended paper.
YES Check each roller, and
replace it if worn.
NO 1. Check if the copy paper is
set correctly in the cas-
sette.
2. Check the paper guide
assembly for foreign
matter.
NO See "The registration roller
fails to rotate."
YES End.
IMAGE FAULTS
3–15