Lexmark 4076 Execjet II Service Manual - Page 26

Paper Feed Service Check, Make sure the correct type of paper is in the machine.

Page 26 highlights

4076-0XX Paper Feed Service Check If your machine does not have paper jam problems, go on to 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. • Make sure there is not too much paper in the ASF. • Make sure the correct type of paper is in the machine. • Check for static in the paper. • Make sure the rear of the carrier guide is on top of the paper guide. FRU OR PROCEDURE 1 System Board ACTION With J5 disconnected and power on, check for +24 V dc between J5-3 and ground, and between J5-4 and ground on the system board. 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. 14

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4076-0XX
14
Paper Feed Service Check
If your machine does not have paper jam problems, go on to the ser-
vice check. If your machine does have a paper jam problem, exam-
ine it for the following before you begin the service check.
Check the entire paper path for obstructions.
Make sure there is not too much paper in the ASF.
Make sure the correct type of paper is in the machine.
Check for static in the paper.
Make sure the rear of the carrier guide is on top of the paper
guide.
FRU OR PROCEDURE
ACTION
1
System Board
With J5 disconnected and power on,
check for +24 V dc between J5-3 and
ground, and between J5-4 and
ground on the system board. If the
voltage is not present, check for
motor pins shorted to the motor hous-
ing. If you find a shorted pin, replace
the motor. If you still have a failure
after replacing the motor, replace the
system board.