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■ Procedure
1. While pressing the shutter [1], clean the surface [2] of the Registration Patch Sensor in a single direction with a wet
and tightly-wrung cotton swab. After cleaning, check that there is no soiling caused by toner on the surface of the
sensor.
CAUTION:
• Do not use alcohol because it causes melting and clouding of the sensor window.
• Do not dry wipe the sensor window because it is charged to attract toner.
CAUTION:
Actions after
Replacement:"Adjustment Procedure" on page 433
Removing the Registration Patch Sensor (Front), (Middle), (Rear)
■ Preparation
1. Removing the ITB
Unit"Removing the ITB Unit" on page 283
2. Removing the Process
■ Procedure
1. Remove the 2 screws [1], and then remove the Shutter Drive Unit [2] of the sensor.
[1]
Unit"Removing the Process Unit" on page 320
2x
[2]
[1]
288
4. Disassembly/Assembly
[2]
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Table of Contents
Troubleshooting
