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Diagnostic information 2-29

5056-XXX

999 - Stapler Motor Error

Step Questions/actions Yes No

1 Are staples jammed in the stapler? Go to step 2. Go to step 3.

Clear the staple jam and run the staple test in

diagnostic mode or run a staple job. Does the problem

reoccur?

Replace the

staple cartridge

and to go step 4.

Problem solved.

Are the connectors CN5 on the stapler and PJ1 on the

finisher control board securely connected?

Go to step 5. Securely connect

the connectors.

Did replacement of the stapler cartridge resolve the

problem?

Problem

resolved.

Replace the

stapler.

Make sure the finisher set switch is activated. Measure

for 5 V dc between pins 11 and 12 on stapler connector

CN5. Is 5 V dc present?

Replace the

stapler.

Replace the

finisher control

board.

Did replacement of the finisher control board correct

the problem?

Problem solved. Go to step 7.

Is there continuity on the stapler to finisher control

board cable?

Replace the

power supply.

Replace the

cable.

Lexmark C920 Service Manual

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