Kyocera FS C5020N - Color LED Printer Service Manual page 64

2F3/2F4
Code
6020 Fuser abnormal high temperature
error (heat roller)
• Abnormal high fuser temperature of
the heat roller was detected.
6030 Fuser thermistor 1 broken error (heat
roller)
• It was judged it has been broken from
the fact that it is not the input signal
from of the fuser thermistor 1 which
detects the fuser temperature of the
heat roller.
1 2
* : 16 ppm printer, * : 24 ppm printer
1-5-12
Contents
Causes Check procedures/corrective measures
Defective engine Replace the engine controller PWB (A0004).
controller PWB See page 1-6-41.
(A0004).
Defective fuser Replace the fuser PWB (KP-970*
PWB.
Defective power Replace the power supply PWB. See page
supply PWB 1-6-41.
(A0004).
Defective installa- Check the installation condition of fuser ther-
tion condition of mistor 1,if there is trouble, remedy or
fuser thermistor 1. replace. See page 1-6-26 or 1-6-33.
Defective engine Replace the engine controller PWB (A0004).
controller PWB See page 1-6-41.
(A0004).
Defective harness Check harness of the fuser PWB (KP-970*
of the fuser PWB A0003*
between fuser ther- connector of the fuser PWB (KP-970*
mistor 1 or poor A0003*
contact of the replace.
connector
terminals.
Defective harness Check the continuity of the harness
(S02854) between
(S02854), check the connection YC691 con-
fuer PWB and fuser
nector of the fuser PWB (KP-970*
connector or poor if there is trouble, remedy of replace.
contact of the
connector
terminals.
Defective harness Check the continuity of the harness
(S02853) power (S02853), check the connection YC902 con-
supply PWB and nector of the power supply PWB, if there is
fuser connector or trouble, remedy or replace.
poor contact of the
connector termi-
nals.
Defective fuser Replace the fuser PWB (KP-970*
PWB.
Defective power Replace the power supply PWB. See page
supply PWB. 1-6-35.
Defective installa- Check the installation condition of fuser ther-
tion condition of mistor 1, if there is trouble, remedy or
fuser thermistor 1. replace. See page 1-6-26 or 1-6-33.
Remarks
2
), check the conenction YC694
2
), if there is trouble, remedy or
1 2
/A0003* ).
1
/
1
/
1 2
/A0003* ),
1 2
/A0003* ).