Xerox Phaser 8400 Service Manual page 121

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Jam Code Troubleshooting Procedures
M4A
Paper path motor stalled during an abnormal printer shutdown
1.
Inspect the paper path for obstructions.
2.
Run the diagnostic Paper Drive Power test.
3.
Run the diagnostic Media Path Motor and Shafts test.
4.
Replace the Media Path Drive Assembly.
M4B
Paper path motor stalled during a normal printer shutdown.
1.
Inspect the paper path for obstructions.
2.
Run the diagnostic Paper Drive Power test.
3.
Run the diagnostic Media Path Motor and Shafts test.
4.
Replace the Media Path Drive Assembly.
M4C
Paper path motor stalled during mechanical recovery.
1.
Inspect the paper path for obstructions.
2.
Run the diagnostic Paper Drive Power test.
3.
Run the diagnostic Media Path Motor and Shafts test.
4.
Replace the Media Path Drive Assembly.
M4D
Paper path motor stalled during printer warmup.
1.
Inspect the paper path for obstructions.
2.
Run the diagnostic Paper Drive Power test.
3.
Run the diagnostic Media Path Motor and Shafts test.
4.
Replace the Media Path Drive Assembly.
MFE
Paper path motor stalled while the printer was in its ready state.
1.
Inspect the paper path for obstructions.
2.
Run the diagnostic Paper Drive Power test.
3.
Run the diagnostic Media Path Motor and Shafts test.
4.
Replace the Media Path Drive Assembly.
M4F
Paper path motor stalled while the printer was in a fault state.
1.
Inspect the paper path for obstructions.
2.
Run the diagnostic Paper Drive Power test.
3.
Run the diagnostic Media Path Motor and Shafts test.
4.
Replace the Media Path Drive Assembly.
M4G
Paper path motor stalled while the printer performed an auto drum maintenance
cycle.
1.
Inspect the paper path for obstructions.
2.
Run the diagnostic Paper Drive Power test.
3.
Run the diagnostic Media Path Motor and Shafts test.
4.
Replace the Media Path Drive Assembly.
M4H
Paper path motor stalled while the printer performed printhead maintenance.
1.
Inspect the paper path for obstructions.
2.
Run the diagnostic Paper Drive Power test.
3.
Run the diagnostic Media Path Motor and Shafts test.
4.
Replace the Media Path Drive Assembly.
3-54
(Continued)
Phaser 8400 Printer Service Manual

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