Pob Sensor Static Jam - Xerox Phaser 7500 Service Manual

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Table of Contents

Error Messages and Codes

POB Sensor Static Jam

Applicable Chain-Link Code

Initial Actions

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 POB Sensor

detected paper.

077-903: IOT Static Jam (at POB Sensor)

Check the paper path for debris.

Power cycle the printer.

If the problem persists, follow the procedure below.

Troubleshooting Reference

Applicable Parts

MCU PWB, PL18.3.6

Motor Drive PWB, PL18.3.7

1. Check the POB Sensor for remaining paper, contamination, or improper

installation.

2. Perform the Jam Sensors test in Diagnostics.

3. Check the connection between the POB Sensor J180 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,

MCU PWB (REP 18.12,

Wiring and Plug/Jack Map References

Phaser 7500 Printer Service Manual