Kyocera FS-6025MFP/B Service Manual page 137

Code Contents
4010 Polygon motor steady-state
error
Stable OFF is detected for 1 s
continuously after polygon
motor stabilized.
4100 BD initialization error
BD is not detected within 1 s
after polygon motor stabilized.
4700 VIDEO ASIC device error
6000 Broken fuser heater wire
The detected temperature of
fuser thermistor does not
reach the specified tempera-
ture (ready indication temper-
ature) after the fuser heater
has been turned on continu-
ously for 60 s in warming up.
The fusing temperature at 7
seconds and 20 seconds
since fuser temperature con-
trol has occurred differs by
43°C/109.4°F or less.
Causes
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. Laser scanner unit and engine PWB (YC11)
Defective polygon Replace the laser scanner unit (see page 1-
motor. 5-23).
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-34).
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. BD PWB and APC PWB (YC1)
APC PWB (YC2) and main PWB (YC103)
Defective APC Replace the laser scanner unit (see page 1-
PWB. 5-23).
Defective BD
PWB.
Defective main Replace the main PWB and check for cor-
PWB. rect operation (see page 1-5-33).
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. Main PWB (YC105) and engine PWB
(YC17)
Defective main Replace the main PWB or the engine PWB
PWB or engine and check for correct operation (see page 1-
PWB. 5-33, 1-5-34).
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 heater and power source PWB
(YC102)
Fuser unit and engine PWB (YC7)
Deformed connec- See page 1-4-15.
tor pin.
Defective triac. See page 1-4-15.
Fuser thermostat Reinsert the fuser unit (see page 1-5-21).
triggered.
Broken fuser
heater wire.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-34).
1-4-13
Check procedures/
corrective measures
2K3/2L3