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Service Bulletin
SB Number: SB 2LW-010 Creation Date: 18/11/2011
Subject: Zigzag ruled lines in the sub-scanning direction
Model: FS-3040MFP/3140MFP/3040MFP+/3140MFP+/3540MFP/3640MFP
Phenomenon Zigzag ruled lines may appear in the sub-scanning (Vertical) direction.
Cause This is due to contact failure between the heat roller bearing and the ground plate of the
Fuser unit.
Solution The ground plate (Plate earth fuser) has been changed as follows:
1. The material has been changed (Hardened) from SUS 304CSP1/2H to SUS 304CSPH
2. The shape (Angle) has been changed.
Abnormal image sample There should be no gap between the
heat roller bearing and the ground plate of the
Fuser unit.
Bearing
Old condition New condition: The angle has been changed
to improve the contact with the bearing.
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