2PR
1-4-20
6130 Broken fuser thermistor 2 wire
Input from fuser thermistor 1 is 3 or less
(A/D value) continuously for 1 second
(5.5 ms 182 times).
Defective harness
between fuser
thermistor 1 and
paper exit PWB
(YC5), or improper
connector inser-
tion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective harness
between paper exit
PWB (YC1) and
engine PWB
(YC602), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Broken fuser
thermistor 1 wire.
Replace the fuser unit (See page 1-5-24).
Fuser thermistor 1
installed incor-
rectly.
Replace the fuser unit (See page 1-5-24).
Defective engine
PWB.
Replace the engine PWB (See page 1-5-
28).
6400 Zero cross signal error
The zero cross signal (ZCROSS) does
not reach the engine PWB for specified
time.
Defective harness
between power
source PWB
(YC103) and
engine PWB
(YC19), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective power
source PWB.
Replace the power source PWB (See page
1-5-25).
Defective engine
PWB.
Replace the engine PWB (See page 1-5-
28).
Code Contents
Remarks
Causes Check procedures/corrective measures