Oce 3121 Technical & Service Manual page 89

The copy has a displaced leading edge
Cause
Document
The pick-up roller, the
feeding roller, and the
separation roller
( ' * 3 * ' ), ' REGIST '
The registration roller,
the pick-up roller and
the feeding guide.
The copy has blurred images
Cause
Scanner cable
Scanner rail
Drive for the OPC, and
the OPC
Gear for the developing
roller
OPC drive
OPC unit
16 TSM Océ 3121
Step Checks
1 Is the RDF being used?
2 Is the document position
correct?
3 Has the relevant roller
reached the end of its
scheduled lifetime?
4 Execute 'REGIST' in
service mode (*3*).
5 Is the problem evident
only on the second side
of a two-sided copy, or an
overlay copy?
Step Checks
1 Is the cable twisted or
frayed on the pulley,
when the scanner is mov-
ing?
2 Move mirror 1 by hand.
Does it move smoothly?
3 Is the problem repeated
at intervals of approxi-
mately 94 mm?
4 Is the problem repeated
at intervals of 35 mm?
Y/N Action
Yes Solve the problem, by
referring to the RDF sec-
tion.
No Place the document cor-
rectly?
Yes Replace the roller
No Check the lower fuser
roller
Yes Check and clean:
Registration roller
I
The pick-up roller and
I
the feeding guide.
Y/N Action
Yes Correct the routing of the
cable, or replace the
cable.
No Clean the surface of the
scanner rail, using alco-
hol. Then, apply a drop
of lubricant.
Yes Check the drive of the
I
OPC
Check for scratches or
I
foreign matter at the
ends of the OPC. These
are in contact with the
developing roller.
Yes Check the developing
unit.
No Check the drive of the
I
OPC
Replace the OPC unit
I
Image quality