Phaser 7500 Printer Service Manual 3-63
Error Messages and Codes
Duplex Wait Sensor Static Jam
When the power was turned On, the M/C was stopped (Cycle Down/ Shut Down),
or when the interlocks were closed (all interlocks including options), the Duplex
Wait Sensor detected paper.
Applicable Chain-Link Code
• 077-907: IOT Static Jam (at Duplex Path Sensor)
Initial Actions
• Check the paper path for debris.
• Power cycle the printer.
• If the problem persists, follow the procedure below.
1. Check the Duplex Wait Sensor for remaining paper, contamination, Actuator
return failure, or improper installation.
2. Perform the Jam Sensors test in Diagnostics.
3. Check the connection between the Duplex Wait Sensor J175 and the Motor
Drive PWB J524 for short circuit.
4. If no problems are found, replace the following parts in sequence:
• Motor Drive PWB (REP 18.13, page 8-204)
• MCU PWB (REP 18.12, page 8-202)
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ MCU PWB, PL18.3.6
■ Motor Drive PWB, PL18.3.7
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