Kyocera KM-6030 - Page 198

2FB/2FC-4
1-5-37
C5600 Drum surface potential problem 1
• Grid voltage at 4.5 V could not deter-
mine the potential.
• Potential adjustment in 30 times could
not raise the potential sensor value to
the predetermined.
Deteriorated main
charger.
Check the main charger wire and replace it if
necessary (see page 1-6-33).
Grid or main
charger shield is
dirty.
Clean the grid or main charger shield if nec-
essary.
Defective drum
surface potential
sensor.
Replace the drum surface potential sensor.
Defective high volt-
age PWB.
Replace the high voltage PWB and check
for correct operation.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C5610 Drum surface potential problem 2
• Grid voltage at 0.3 V could not deter-
mine the potential.
• Potential adjustment in 30 times could
not lower the potential sensor value to
the predetermined.
Defective drum
surface potential
sensor.
Replace the drum surface potential sensor.
Defective high volt-
age PWB.
Replace the high voltage PWB and check
for correct operation.
Defective drum. Replace the drum (see page 1-6-56).
Defective engine
PWB.
Replace the engine PWB.
C6000 Fuser heater lamp break
• The fuser temperature does not
increase for 40 s after the fuser heat-
ers have been turned on for warming
up.
• The fuser temperature remains below
50
°C/122 °F for 10 s continuously
after the fuser heaters have been
turned on during stabilization.
Installation defec-
tiveness on fuser
thermistor M and S.
Check the mounting state of the fuser ther-
mistor M and S. If any problem is found,
repair it.
Defective fuser
thermostat.
Replace the fuser thermostat (see page 1-6-
75).
Installation defec-
tiveness on fuser
heater L, M or S.
Check the mounting state of the fuser ther-
mistor L, M and S. If any problem is found,
repair it.
Broken fuser
heater L, M and S
wire.
Check for continuity. If none, replace the
fuser heater L, M and S (see page 1-6-76).
Defective engine
PWB.
Replace the engine PWB.
Defective AC
power source
PWB.
Replace the AC power source PWB.
C6020 Fuser thermistor high-temperature
detection error
• The fuser temperature exceeds 235
°C/455 °F for 10 s.
• The fuser high-temperature signal is
detected for continous 500 ms.
Installation defec-
tiveness on fuser
thermistor M and S.
Check the mounting state of the fuser ther-
mistor M and S. If any problem is found,
repair it.
Defective fuser
thermistor M and
S.
Replace the fuser thermistor M and S (see
page 1-6-75).
Defective engine
PWB.
Replace the engine PWB.
Code Contents
Remarks
Causes Check procedures/corrective measures