Kyocera TASKalfa 181 - Page 136

2KJ/2KH
1-4-22
C6000 Fuser heater break
The temperature does not reach 70 °C/
158°F in 15 s before secondary stabiliza-
tion.
Temperature rise of 1°C/1.8°F does not
occur in 5 s before secondary stabiliza-
tion (except during printing).
Poor contact in the
fuser thermistor
connector termi-
nals.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Fuser thermistor
installed incor-
rectly.
Check and reinstall if necessary.
Fuser thermostat
triggered.
Check for continuity. If none, replace the
fuser thermostat.
Fuser heater
installed incor-
rectly.
Check and reinstall if necessary.
Broken fuser
heater wire.
Check for continuity. If none, replace the
fuser heater.
C6020 Abnormally high fuser thermistor
temperature
Fuser thermistor is detected 230°C/
446°F or more for 40 ms.
Shorted thermistor. Measure the resistance. If it is 0 Ω, replace
the thermistor.
Broken heater con-
trol circuit on the
power source
PWB.
Replace the power source PWB and check
for correct operation.
C6050 Abnormally low fuser thermistor tem-
perature
Fuser thermistor remains below 90°C/
194°F for 1 s.
Poor contact in the
fuser thermistor
connector termi-
nals.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Broken fuser ther-
mistor wire.
Measure the resistance. If it is ∞ Ω, replace
the fixing thermistor.
Fuser thermistor
installed incor-
rectly.
Check and reinstall if necessary.
Fuser thermostat
triggered.
Check for continuity. If none, replace the
fuser thermostat.
Fuser heater
installed incor-
rectly.
Check and reinstall if necessary.
Broken fuser
heater wire.
Check for continuity. If none, replace the
fuser heater.
C6400 Zero-cross signal error
Interrupt of the zero-cross signal does
not occur more than 1 s.
Poor contact in the
connector termi-
nals.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Defective power
source PWB.
Check if the zero-crossing signal is output
from YC2-2 on the power source PWB. If
not, replace the power source PWB.
Defective engine
PWB.
Replace the engine PWB if C6400 is
detected while YC2-2 on the power source
PWB outputs the zero-crossing signal.
Code Contents
Remarks
Causes Check procedures/corrective measures