Kyocera KM-4230 Service Manual page 432

Code Contents
C610 Broken fixing unit ther-
mistor wire
• The fixing temperature
does not increase for 40 s
after the fixing heaters
have been turned on for
warming up.
• The fixing temperature re-
mains below 50˚C/122˚F
for 10 s continuously after
the fixing heaters have
been turned on during sta-
bilization.
C620 Abnormally low fixing
temperature
• The fixing temperature re-
mains below 120˚C/248˚F
for 10 s.
Causes
Fixing unit Check and reinstall if neces-
heater M or S sary.
installed incor-
rectly.
Broken fixing Check for continuity. If none,
unit heater M or replace the fixing unit heater
S wire. M or S.
Poor contact of Check the connection of con-
the fixing unit nector CN3-B8 on the engine
thermistor con- PCB and the continuity across
nector termi- the connector terminals. Re-
nals. pair or replace if necessary.
Broken fixing Measure the resistance. If it is
unit thermistor infinite, replace the fixing unit
wire. thermistor.
Fixing unit ther- Check and reinstall if neces-
mistor installed sary.
incorrectly.
Fixing unit ther- Check for continuity. If none,
mostat trig- replace the fixing unit thermo-
gered. stat.
Fixing unit Check and reinstall if neces-
heater M or S sary.
installed incor-
rectly.
Broken fixing Check for continuity. If none,
unit heater M or replace the fixing unit heater
S wire. M or S.
Remarks
Check procedures/
corrective measures
2A3/4
3-5-13