Kyocera TASKalfa 250, TASKalfa300, TASKalfa400, TASKalfa500ci SERVICEBULLETINS 2H7 055 Error code C6400
Service Bulletin
Page 1/2
B180 / SB 2H7-055
SB Number:
Subject:
SB 2H7-055
Error code C6400 (Low voltage board has been changed)
Creation Date: 17/04/2012
Model: TASKalfa250ci/300ci/400ci/500ci/552ci
Phenomenon Depending upon levels of static electricity in the environment, Power Supply waveform distortion
and Error code C6400 (Zero Cross signal Error) may occur.
Solution Resistor R329 on the Low Voltage board has been changed from 100kΩ to12kΩ.
Recognizing the latest type of the Parts unit low
voltage 200 SP
Old condition: 011
New condition: 110
Resistor R329
KDIS Service Department, KYOCERA Document Solutions Europe B.V.
Parts
Service Bulletin
Page 2/2
B180 / SB 2H7-055
No. Old Parts
No.
1 302H794351
2H794351
Classication
Field measure When the above mentioned phenomenon occurs, please replace the Low Voltage board with the
Serial numbers of affected machines
Type Serial number
TASKalfa250ci/300ci/400ci/500ci/552ci Planned from June 2011 production*.
The above is the plan at the present moment. Please note that there is a possibility of change after giving this
information.
New Parts
No.
302H794850
2H794850
Entire stock rework
latest type.
Description Q’TY Interchange-
ability
Old New Old New
PARTS UNIT LOW VOLTAGE 200 SP 1 1 X O
In-eld modication at next visit
In-eld modication by case
X
No modication necessary
KDIS Service Department, KYOCERA Document Solutions Europe B.V.
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