Kyocera TASKalfa 250, TASKalfa300, TASKalfa400, TASKalfa500ci SERVICEBULLETINS 2H7 047
Service Bulletin
SB Number:
Subject:
SB 2H7-047_Revised Issue
Black background on the image
Creation Date: 16/12/2010
Model: TASKalfa250ci/300ci
Revision information: The affected serial numbers have been added.
Phenomenon In rare cases the black background on the image may occur due to the uneven black toner
layer when operating the machine in high humidity environments.
Solution To improve the position between the developing sleeve roller and the developing magnet
roller, the angle of the D-cut at the xing plate at the front of the machine has been changed.
Background on the image
sample.
Paper feed direction.
Black developing unit at the front
of the machine.
Old condition
New condition
The angle of the
D-cut has been
changed.
Parts
No. Old Parts
No.
1 302JZ93198
2JZ93198
Part notes: * The Developing unit 302JZ93198 with the black dot beside the serial number at the barcode label, is
the same part as Developing unit 302JZ93199.
X* The Fixing plate is not availble as a separate part.
Classication
Field measure When the above mentioned phenomenon occurs, please perform [Developer refresh] at
Serial numbers of affected machines
New Parts
No.
302JZ93199
2JZ93199
Entire stock rework
[Adjustment/Maintenance] in the [System menu]. If the phenomenon still occurs, please replace
the black developing unit with the latest type.
Description Q’TY Interchange-
ability
Old New Old New
PARTS DLP K L UNIT 1 1 X* O
In-eld modication at next visit
In-eld modication by case
X
No modication necessary
Type Serial number
TASKalfa250ci QJK0Y27873
TASKalfa300ci QJE0X06041
Machines produced after the above mentioned serial numbers, should not have the above mentioned phenomenon.
KMIS Service Department, Kyocera Mita Europe A345 / SB 2H7-047
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