Technical Bulletin PAGE: 1/3
Please add the Sub Hopper Unit replacement and adjustment procedure described in this
bulletin to the following section of the Ch-C1 field service manual:
Replacement and Adjustment > Toner Supply Unit
Also, steps 1 and 2 of the following sections are to be replaced with the Sub Hopper Unit
replacement procedure described in this bulletin.
Replacement and Adjustment > Toner Supply Unit > Toner End Sensor (KCMY)
Replacement and Adjustment > Toner Supply Unit > Sub Hopper Motor (KCMY)
Sub Hopper Unit
1. Toner supply unit inner cover (see page 540 of the field service manual.)
2. CMY: Sub Hopper Unit [A] (2 screws each, all clamps)
e.g.: Y
Subject: Manual Correction: Sub Hopper Unit replacement /
adjustment procedure
Prepared by: Chihiro Shimaji
From: MFP Tech Service Dept., 1st MFP Tech Service Sect.
Mechanical
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Product Safety
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Service manual revision
Retrofit information
Tier 2