Service Bulletin
(Page.1/2)
Ref. No. 2J0-0026 (B297)
<Date> September 14, 2011
Subject Measures against the Abnormal Image
FS-2020D, FS-3900DN, FS-3920DN, FS-4000DN, FS-4020DN, Model FS-3040MFP, FS-3140MFP, FS-3040MFP+, FS-3140MFP+,
FS-3540MFP, FS-3640MFP
Topic
Zigzags might appear in the sub-scanning direction (vertical direction) as shown in the sample image below due to the contact failure between the heat roller bearing and the ground plate of the fuser unit. Therefore, the following changes were made in order to improve the contact.
Abnormal image sample
Content of Changes
Ground plate (PLATE EARTH FUSER) (No.15)
-Change of the material (Hardened): SUS 304CSP1/2H SUS 304CSPH
-Change of the shape
Check the gap between the bearing and ground plate (to be contacted)
Bearing
Ground plate (No.15)
Old |
New |
45° |
|
|
25°
5°
The angle was changed in order to improve the contact with the bearing.
KYOCERA MITA Europe B.V.
European Service & Development Center (ESDC)