Xerox Phaser 7500 Service Manual page 444

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Table of Contents

Error Messages and Codes

Test the MOB shutter open/closed in diagnostics. If the shutter open/

closed test fails, replace the MOB Sensor Assembly (REP 18.3,

A temporary repair to allow the customer to use the printer if a MOB Sensor is

not available and the shutter is not functioning correctly, is to remove the

shutter from the MOB Assembly until a replacement assembly can be

2. If no problems are found, replace the following parts in sequence:

IBT Belt Unit (REP 6.2,

MCU PWB (REP 18.12,

Phaser 7500 Printer Service Manual

Troubleshooting