2M4/2M5/2M6/2M7-1
1-4-7
3300 AGC Error
The resultant AGC fell outside
the range of allowance.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
CIS sensor and main PWB (YC8)
Defective CIS sen-
sor.
Replace the scanner unit (see page 1-5-15).
Defective main
PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-18).
3500 Scan ASIC Error
The scan ASIC has been
inoperative.
Defective main
PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-18).
4000 Polygon motor synchronize
error
Polygon motor is not stabi-
lized within 15 seconds since
the motor is activated.
After polygon motor is stabi-
lized, the ready signal is not
detected for 7 seconds contin-
uously.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Polygon motor and main PWB (YC17)
Defective polygon
motor.
Replace the laser scanner unit
(see page 1-5-15).
Defective main
PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-18).
4200 BD stability error
The BD signal is not detected
for 1000 ms after processing
the compulsion lighting.
At the interrupt in VSYNC, the
BD error is detected continu-
ously for 10 times in 400 ms
intervals.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Laser scanner unit (YC1) and main PWB
(YC5)
Defective APC
PWB.
Replace the laser scanner unit
(see page 1-5-15).
Defective main
PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-18).
6000 Broken fuser heater
The temperature does not
reach 100° C/212 °F after the
fuser heater lamp has been
turned on continuously for 18
seconds.
At the time of 20 degrees or
less from specified tempera-
ture, the fuser temperature
does not rise by 2 degrees or
more after the fuser heater
lamp has been turned on con-
tinuously for 8 seconds.(dur-
ing ready or during print)
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
fuser heater lamp and Power source PWB
(YC102).
Fuser thermostat
triggered.
Replace the fuser unit (see page 1-5-17).
Defective fuser
heater.
Replace the fuser unit (see page 1-5-17).
Defective main
PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-18).
Code Contents Causes
Check procedures/
corrective measures
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