Kyocera TASKalfa 620 Service Manual page 184

2KN/2KP
Code
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
after the fuser heaters have been
turned on during stabilization.
C6020 Fuser thermistor high-temperature
detection error
• The fuser temperature exceeds 235
° °
C/455 F for 10 s.
C6030 Fuser thermistor break error
• The fuser temperature remains at
lower then 0
ously when the fuser heater is on.
C6050 Fuser thermistor abnormal tempera-
ture detection
• During copying, the temperature at the
heat roller lower than 120
detected continuously for 5 s.
1-4-40
Contents
°
F for 10 s continuously
° °
C/32 F for 30 s continu-
° °
C/248 F is
Causes Check procedures/corrective measures
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor M and S. If any problem is found,
thermistor M and S. repair it.
Defective fuser Replace the fuser thermostat 1 or 2 (see
thermostat 1 or 2. page 1-5-63).
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor L, M and S. If any problem is found,
heater L, M or S. repair it.
Broken fuser Check for continuity. If none, replace the
heater L, M and S fuser heater L, M and S (see page 1-5-66).
wire.
Defective engine Replace the engine PWB.
PWB.
Defective AC Replace the AC power source PWB.
power source
PWB.
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor M and S. If any problem is found,
thermistor M and S. repair it.
Defective fuser Replace the fuser thermistor M and S (see
thermistor M and page 1-5-63).
S.
Defective engine Replace the engine PWB.
PWB.
Defective engine Replace the engine PWB.
PWB.
Defective AC Replace the AC power source PWB.
power source
PWB.
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor M and S. If any problem is found,
thermistor M and S. repair it.
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor M and S. If any problem is found,
thermistor M and S. repair it.
Operation on fuser Check for continuity. If none, replace the
thermostat 1 or 2. fuser thermostat 1 or 2.
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor L, M and S. If any problem is found,
heater L, M or S. repair it.
Broken fuser Check for continuity. If none, replace the
heater L, M and S fuser heater L, M and S (see page 1-5-66).
wire.
Defective engine Replace the engine PWB.
PWB.
Defective AC Replace the AC power source PWB.
power source
PWB.
Remarks