The Paper Feed Clutch Does Not Operate; The Bypass Paper Feed Clutch Does Not Operate; The Cleaning Lamp Does Not Turn On; The Exposure Lamp Does Not Turn On - Kyocera Mita KM-1505 Service Manual

2BT
Problem
(7) Broken paper feed clutch
The paper feed coil.
clutch does not
Poor contact in thepaper
operate.
feed clutch connector
terminals.
(8) Broken bypass paper feed
The bypass paper clutch coil.
feed clutch does not
Poor contact in the bypass
operate.
paper feed clutch
connector terminals.
(9) Poor contact in the
The cleaning lamp cleaning lamp connector
does not turn on. terminals.
Defective cleaning lamp.
(10) Poor contact in the
The exposure lamp exposure lamp connector
does not turn on. terminals.
Defective inverter PCB.
(11) Defective inverter PCB.
The exposure lamp
does not turn off.
(12) Broken wire in fixing
The fixing heater heater.
does not turn on
Fixing unit thermostat
(C610).
triggered.
Broken fixing unit
thermistor wire.
(13) Dirty sensor part of the
The fixing heater fixing unit thermistor.
does not turn off.
(14) Broken main charger wire.
Main charging is not
Leaking main charger
performed (C510).
housing.
Poor contact in the high-
voltage transformer PCB
connector terminals.
Defective main PCB.
Defective high- voltage
transformer PCB .
1-5-20
Causes
Check for continuity across the coil. If none, replace the paper
feed clutch.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check for continuity across the coil. If none, replace the bypass
paper feed clutch.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check for continuity. If none, replace the cleaning lamp.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
If the exposure lamp does not turn on when CN12-1 and CN12-2
on the main PCB are held low, replace the inverter PCB.
If the exposure lamp does not turn off when CN12-1 and CN12-2
on the main PCB are held high, replace the inverter PCB.
Check for continuity across the heater. If none, replace the
heater.
Check for continuity across the thermostat. If none, remove the
cause and replace the thermostat.
Measure the resistance. If it is ∞ Ω, replace the fixing unit
thermistor.
Check visually and clean the thermistor sensor parts.
See page 1-5-12.
Check procedures/corrective measures