Basic Servicing - Canon NP6621 Service Manual

MAINTENANCE AND SERVICING
III. BASIC SERVICING
The machine does not have items to be serviced on a scheduled basis. However, it is desirable to go
through the steps in the table when paying a visit to the user.
Step
1 Meet the person in charge.
2 Make test copies in DIRECT,
REDUCE, ENLARGE.
3 Clean the static eliminator and feeding
assembly.
4 Clean the fixing/delivery assembly:
• paper guide plate
• separation claw
5 Perform servicing according to the
number of copies made.
6 Clean the copyboard cover and
copyboard glass.
7 Make test copies.
8 Make sample copies.
9 Put sample copies in order and clean
up the site of installation.
10 Record the latest counter reading.
11 Fill out the Servicing Sheet, and report
to the person in charge.
6–4
Work
COPYRIGHT © 1998 CANON INC.
Items
Check the general
condition.
Check the following:
a. image density
b. soiling of white
background
c. clarity of characters
d. leading edge non-
image width
e. left/right margin
f. fixing/registration
displacement, soiled
back
g. abnormal noise
h. counter operation
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Remarks
standard: 2.5 ±1.5 mm
(DIRECT, one-sided)
standard: 2.5 ±1.5 mm
(DIRECT, one-sided)
Use the special brush
(accessory) when
cleaning the static
eliminator.
Use solvent.
Use solvent.