Kyocera KM-4230 Service Manual page 522

Problem
(13) Broken charger
The charger cleaning motor
cleaning coil.
motor does
Poor contact in the
not operate.
charger cleaning
motor connector
terminals.
Defective engine
PCB.
(14)
Broken image
The image
formation unit fan
formation unit
motor coil.
fan motor
Poor contact in the
does not
image formation
operate.
unit fan motor
connector
terminals.
Defective engine
PCB.
(15) Broken upper
The upper paper feed clutch
paper feed coil.
clutch does
Poor contact in the
not operate.
upper paper feed
clutch connector
terminals.
Defective engine
PCB.
Causes Check procedures/corrective measures
Check for continuity across the coil. If none,
replace the charger cleaning motor.
Reinsert the connector. Also check for
continuity within the connector cable. If
none, remedy or replace the cable.
Run maintenance item U102 and check if
CN8-B4 and CN8-B5 on the engine PCB go
low. If not, replace the engine PCB.
Check for continuity across the coil. If none,
replace the image formation unit fan motor.
Reinsert the connector. Also check for
continuity within the connector cable. If
none, remedy or replace the cable.
Run maintenance item U135 and check if
CN2-A4 on the engine PCB goes low. If not,
replace the engine PCB.
Check for continuity across the coil. If none,
replace the upper paper feed clutch.
Reinsert the connector. Also check for
continuity within the connector cable. If
none, remedy or replace the cable.
Run maintenance item U032 and check if
CN15-13 on the engine PCB goes low. If
not, replace the engine PCB.
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