Entire Blank Image (Black) - Kyocera ECOSYS P2235dw Service Manual

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Step Check description
1 Reinstalling the drum unit
2 Checking the main charger
contact
3 Checking the developer
bias contact
4 Checking the connection
5 Checking the connection
6 Replacing the high voltage
PWB
7 Replacing the LSU
8 Replacing the main/engine
PWB
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Step Check description
1 Executing Drum refresh
2 Cleaning / replacing the
transfer roller
Assumed cause
The drum unit or main
charger unit is not attached
properly.
The main charger contact
is dirty or deformed.
The developer bias contact
is dirty or deformed.
The FFC is not properly
connected or faulty.
The connector is not prop-
erly connected or the wire
is faulty.
The high voltage PWB is
faulty.
The LSU is dirty or faulty.
The main/engine PWB is
faulty.
Assumed cause
The drum surface is dirty.
The transfer roller is dirty
or deformed.
7-20
2RV/2RW/2RX/2RY/3RA-3
Measures
Reattach the main charger
unit to the drum unit and reat-
tach the drum unit to the main
unit so that it is securely
grounded.
Clean the main charger con-
tact and correct it for secure
grounding.
Clean the developer bias
contact or correct it to secure
ground.
Reconnect the FFC. If the
FFC terminal is peel,
deformed or broken, replace
it.
• LSU (APC PWB) - Main/
engine PWB (YC505)
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire.
• High voltage PWB - Main/
engine PWB (YC16)
Replace the high voltage
PWB.
Replace the LSU.
Replace the main/engine
PWB.
Measures
Execute Drum refresh.
Clean the transfer roller. If not
repaired, replace the transfer
roller.
Reference
Reference