Kyocera KM-3050 - Page 171

2GN/2GP/2GR-1
1-4-31
C4010 Polygon motor steady-state problem
Stable OFF is detected for 20 s continu-
ously after polygon motor stability.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC8 on
the engine PWB and laser scanner unit, and
the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective polygon
motor.
Replace the laser scanner unit.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C4200 BD steady-state problem
ASIC detects a BD error A for 2 s after
the polygon motor rotation has been sta-
bilized.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC8 on
the engine PWB and laser scanner unit, and
the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective laser
scanner unit.
Replace the laser scanner unit.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C5300 Broken cleaning lamp wire
While the cleaning lamp is on, the bro-
ken cleaning lamp wire detection signal
is detected for 2 s continuously.
Defective cleaning
lamp.
Replace the cleaning lamp.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C6000 Fuser heater break
Fuser unit thermistor 1 detected less
than 70°C/158°F for 10 s during warm-
up and ready in.
During warm-up, the temperature at the
fuser unit themistor 1 does not rise by
1°C/1.8°F continuously for 5 s.
Fuser unit thermistor 2 detected less
than 40°C/104°F for 10 s during warm-
up and ready in.
During warm-up, the temperature at the
fuser unit themistor 2 does not rise by
1°C/1.8°F continuously for 5 s.
Defective fuser
heater M or S.
Replace the fuser heater M or S.
Installation defec-
tiveness on fuser
unit thermistor 1.
Check the mounting state of the fuser unit
thermistor 1. If any problem is found, repair
it.
Defective fuser unit
thermostat.
Replace the fuser unit thermostat.
Defective PWB. Replace the power source PWB or engine
PWB and check for correct operation.
C6020 Abnormally high fuser unit thermistor
temperature
Fuser unit thermistor 1 or 2 is detected
250°C/482°F or more for 40 ms.
Installation defec-
tiveness on fuser
unit thermistor 1 or
2.
Check the mounting state of the fuser unit
thermistor 1 or 2. If any problem is found,
repair it.
Defective fuser
thermistor unit 1 or
2.
Replace the fuser unit thermistor 1 or 2.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C6030 Fuser unit thermistor break error
The fuser unit thermistor break signal is
detected continuously for 1 s.
Installation defec-
tiveness on fuser
unit thermistor 1 or
2.
Check the mounting state of the fuser unit
thermistor 1 or 2. If any problem is found,
repair it.
Defective fuser unit
thermistor 1 or 2.
Replace the fuser unit thermistor 1 or 2.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
Code Contents
Remarks
Causes Check procedures/corrective measures