3-60 Phaser 7500 Printer Service Manual
Error Messages and Codes
Registration 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 Regi
Sensor detected paper.
Applicable Chain-Link Code
• 077-900: IOT Static Jam (at Regi Sensor)
Initial Actions
• Check the paper path for debris.
• Power cycle the printer.
• If the problem persists, follow the procedure below.
1. Check the Regi 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 Regi Sensor J160 and the Motor Drive PWB
J515 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
â– Registration Assy, PL15.1.8
â– MCU PWB, PL18.3.6
â– Motor Drive PWB, PL18.3.7