Finisher Main Feed Motor Abnormal; Finisher Jogging Motor Error - Lexmark C920 Service Manual

995 - Finisher Main Feed Motor abnormal

995 Service
Finisher
Step Questions/actions
1 Is there jammed paper or other obstructions in the
paper path?
2 Check to ensure the connector PJ6 on the finisher
control board and the feed motor assembly cable are
properly connected. Are the cables properly
connected?
3 Make sure the finisher set switch is activated. Measure
for +24 V dc (±10%) between pins 7 and 8 and +5 V dc
(±10%) between pins 7 and 6 on the feed motor
assembly cable connector CN1. Is either voltage
missing?
4 Disconnect the feed motor assembly cable and PJ6 on
the finisher control board. Measure continuity on the
cable for all positions. Is there continuity?
5 Replace the feed motor assembly. Did this resolve the
problem?
6 Measure for +24 V dc between pins 1 and 2 on
connector PJ3 on the finisher control board. Measure
for +5 V dc between pins 1 and 3 on PJ2 on the finisher
control board. Is either voltage missing?

996 - Finisher Jogging Motor Error

Step Questions/actions
1 Are there foreign objects or obstructions in the jogging
assembly?
2 Are the jogging motor connectors CN2 on the finisher
control board securely connected?
3 Make sure the finisher set switch is activated. Measure
for +24 V dc (±10%) between pin 1 on CN2 and frame
ground. Is +24 V dc present?
Replace the jogging motor assembly. Did this resolve
4
the problem?
5 Disconnect CN2 and PJ5. Perform a continuity check
on the cable for all positions. Is there continuity?
6 Check for +24 V dc (±10%) between pins 1 and 2 of
PJ3 on the finisher control board. Is +24 V dc present?
Yes No
Clear the paper Go to step 2.
path.
Go to step 3. Properly connect
the cables.
Go to step 4. Go to step 5.
Go to step 6. Replace the
cable.
Problem solved. Replace the
finisher control
board.
Replace the Replace the
power supply. finisher control
board.
Yes No
Clear the objects Go to step 2.
or obstruction.
Go to step 3. Securely connect
the connectors.
Go to step 4. Go to step 5.
Problem solved. Replace the
finisher control
board.
Go to step 6. Replace the
cable.
Replace the Replace the
finisher control power supply.
board.
Diagnostic information
5056-XXX
2-27