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Failures Occur at or Near the Bottom of the Stack of Paper
The paper tray lift plate may not be lifting the paper with enough
force for the pick roller to move the paper. Check the paper tray lift
plate spring for proper operation. Also check the pick roller for wear,
scratches, or rough spots.
Double Feeding
Paper is usually the primary cause of double feeding. Flex the paper
before you place it in the tray. Edge welded paper is the most com-
mon cause of double feeding. Loading the paper in the tray in differ-
ent locations and directions, and using rough paper and short grain
paper can also cause double feeding.
FRU
1
Paper Tray
Separator Pad
Parallel Port Service Check
Run the
"Parallel Wrap Test" on page
1319128. This test helps isolate the printer from the parallel cable
and host. The test provides failure information on the display for
approximately 3 seconds. If the test indicates a problem, replace the
controller board.
Printhead Service Check
FRU
1
Printhead
Cable
2-26
Action
Check the separator pad in the paper tray. A worn
or incorrectly installed separator may cause mis-
feeding.
Action
Check for wear on the cable. Be sure the cable is
properly connected. Check the continuity of the
cable.
3-7. Use wrap plug P/N
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