Kyocera KM-2540 - Checking the Result of Each Communication (Communication Result Display)

2JB/2JC
1-4-26
C3300 CCD AGC problem
After AGC, correct input is not obtained
at CCD.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC4 on
the main PWB and the connector on the
CCD PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective exposure
lamp.
Replace the exposure lamp.
Defective PWB. Replace the main PWB or CCD PWB and
check for correct operation.
C4000 Polygon motor synchronization prob-
lem
The polygon motor does not reach the
stable speed within 20 s of the START
signal turning on.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC2 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.
C4010 Polygon motor steady-state problem
Stable OFF is detected for 5 s continu-
ously after polygon motor stability.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC2 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 for 1 s after the
polygon motor rotation has been stabi-
lized.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC2 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.
C6000 Fuser heater break
Fuser thermistor 1 detected less than
40°C/104°F for 10 s during warm-up and
ready in.
Defective fuser
heater M or S.
Replace the fuser heater M or S.
Installation defec-
tiveness on fuser
thermistor 1.
Check the mounting state of the fuser ther-
mistor 1. If any problem is found, repair it.
Defective fuser
thermostat.
Replace the fuser thermostat.
Defective PWB. Replace the power source PWB or engine
PWB and check for correct operation.
Code Contents
Remarks
Causes Check procedures/corrective measures