Canon NP2120 Service Manual page 162

Note:
As a rule, conduct the following wok every 20,000 copies.
2. Check the service record before paying a vis%, and take replacement parts if necessary.
Work
1 Meet the operator.
2 Record the counter reading.
3 Make test copiers; in the DIRECT,
REDUCE, ENLARGE, page
separation modes.
4
5
feeder unit.
6
7
according to the number of copies
processed; see p. 6-4.
8
copyboard glass.
9 Make test copies.
10 Make sample copies.
11 Put the sample copies in order, and
Record the counter reading.
12
to the operator.
C A N O N NPZl20/2MO RN.1 JAN. 1592 PAINTEO IN JAPAN [IMPRIME AU JAPON)
Check the condition.
Check the faulty copies.
Check the following:
a. image for density
b. background for dirl
c. characters for clarity
d. leading edge for margin
e. left and right sides for
margin
h. counter operation
MAINTENANCE AND SERVICING tZZi?B
Remarks
Standards:
1.5 fo.5 mm/0.061t0.02 in
(DIRECT)
Standards:
2.5 el.5 mm/0.1+0.06 in
(DIRECT)
Dry wipe the units using lint-
free paper; thereafter, clean
them using an alcohol
solution. Do not set unless dn
cleaning brush (accessory).
Use a solvent.
Use a solvent.
6 - 3