Lexmark Z31 Color Jetprinter, Service Manual

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2-8
Service Manual
4099
Paper Feed Service Check
If your machine does not have paper jam problems, continue with
the service check. If your machine does have a paper jam problem,
examine it for the following before you begin the service check:
•
Check the entire paper path for obstructions.
•
Be sure there is not too much paper in the sheet feeder.
•
Be sure the correct type of paper is being used.
•
Check for static in the paper.
FRU Action
1 System Board Unplug the printer and disconnect the paper feed
motor (J9) from the system board. Plug the printer
in and check for approximately 9 to12 V dc
between (J9-1) and ground and (J9-2) and ground
on the system board, as the printer goes through
POST. If the voltage is not present, check for motor
pins shorted to the motor housing. If you find a
shorted pin, replace the motor. If you still have a
failure after replacing the motor, replace the
system board.