Lexmark Optra C, Service Manual

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2-38
Paper Feed Troubleshooting
Pickup Unit
(Codes 20 - 21, Paper Jam)
FRU Action
1 Paper Is recommended paper being used? Advise
the customer to use recommended paper.
2 Paper Is the paper deformed with curls or waves?
Replace the paper. Advise the user on the
storage method.
3 Paper Did it occur in the manual feed unit? Check
from Step 8.
4 Paper Did it occur in the cassette feed unit? Check
from Step 11.
5 Registration Is the registration roller clutch operating
properly? Check the registration roller clutch.
6 Registration Is the registration roller worn, deformed or
soiled? Clean the roller if it is soiled. If worn
or deformed, replace appropriate parts.
7 Prism Is the paper top sensor prism soiled? Clean
it. Replace it if it cannot be cleaned or it is
flawed. If it is OK, replace the pickup PCB.
8 OHP sheet Is dedicated OHP sheet being used, and is it
loaded correctly? Advise the user to use
dedicated OHP sheet, and to set it correctly.
9 Excessive
paper in manual
feeding tray Is more paper in the manual feeding tray than
prescribed? Advise the user not to put more
than the suggested amount of paper in the
tray.
10 Pickup roller
Faulty pickup
Does the pickup roller rotate during printing?
If yes, replace the pickup roller. If no, see “No
Pickup (Manual Feed)”
11 Cassette Is the cassette set properly? Set it properly.
12 Paper set
incorrectly Is the paper correctly set against the cassette
claw? Set it correctly.