Kyocera FS-C5150DN Service Manual page 77

Code Contents
6020 Abnormally high fuser
thermistor temperature
The fuser thermistor detects a
temperature higher than
240C/464F.
By the activation of the high
temperature error detection
circuit (230C/446F or more)
of fuser thermistor, the illumi-
nation of fuser heater was
forcibly turned off and 10 s
has elapsed.
6030 Broken fuser thermistor
wire
Input from fuser thermistor is
3 or less (A/D value) continu-
ously for 1 s.
Causes
Deformed connec- See page 1-4-23.
tor pin.
Defective triac. See page 1-4-23.
Shorted fuser Replace the fuser unit (see page 1-5-25).
thermistor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-26).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Fuser unit and eject PWB (YC3)
Eject PWB (YC1) and engine PWB (YC19)
Deformed connec- See page 1-4-23.
tor pin.
Defective triac. See page 1-4-23.
Broken fuser Replace the fuser unit (see page 1-5-25).
thermistor wire.
Fuser thermostat Reinsert the fuser unit (see page 1-5-25).
triggered.
Broken fuser Replace the fuser unit (see page 1-5-25).
heater wire.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-26).
1-4-22
Check procedures/
corrective measures
2KT/2KV