Kyocera KM-3050 Service Manual page 143

Code
C4010 Polygon motor steady-state problem
The polygon motor rotation is not stable
for 20 s after the polygon motor rotation
has been stabilized.
C4200 BD steady-state problem
ASIC detects a BD error A for 2 s after
the polygon motor rotation has been sta-
bilized.
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.
C6000 Fuser heater break
Fuser thermistor 1 is detected 40°C/
104°F below with 10 s continuously dur-
ing warm-up and ready in.
C6020 Abnormally high fuser thermistor
temperature
Fuser thermistor 1 or 2 is detected
230°C/446°F or more for 40 ms.
C6030 Fuser thermistor break error
The thermistor break signal is detected
continuously for 500 ms.
Contents
Causes Check procedures/corrective measures
Poor contact in the Check the connection of connector YC8 on
connector termi- the engine PWB and laser scanner unit, and
nals. the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective polygon Replace the laser scanner unit.
motor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation.
Poor contact in the Check the connection of connector YC8 on
connector termi- the engine PWB and laser scanner unit, and
nals. the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective laser Replace the laser scanner unit.
scanner unit.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation.
Defective cleaning Replace the cleaning lamp.
lamp.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation.
Defective fuser Replace the fuser heater M or S.
heater M or S.
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor 1. If any problem is found, repair it.
thermistor 1.
Defective fuser Replace the fuser thermostat.
thermostat.
Defective PWB. Replace the power source PWB or engine
PWB and check for correct operation.
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor 1 or 2. If any problem is found, repair
thermistor 1 or 2. it.
Defective fuser Replace the fuser thermistor 1 or 2.
thermistor 1 or 2.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation.
Installation defec- Check the mounting state of the fuser ther-
tiveness on fuser mistor 1 or 2. If any problem is found, repair
thermistor 1 or 2. it.
Defective fuser Replace the fuser thermistor 1 or 2.
thermistor 1 or 2.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation.
2GN/2GP/2GR
Remarks
1-4-31