Kyocera KM-2550 Service Manual page 152

2FT-1
Code
C3200 Exposure lamp problem
Non-lighting of the exposure lamp is
detected at the beginning of copying.
C3300 Optical system (AGC) problem
After AGC, correct input is not obtained
at CCD.
C4000 Polygon motor synchronization prob-
lem
The polygon motor does not reach the
stable speed within 20 s of the START
signal turning on.
C4010 Polygon motor steady-state problem
The polygon motor rotation is not stable
for 5 s after the polygon motor rotation
has been stabilized.
C4200 BD steady-state problem
The MIP detects a BD error for 600 ms
after the polygon motor rotation has
been stabilized.
1-5-22
Contents
Causes Check procedures/corrective measures
Poor contact of the Reinsert the connector. Also check for conti-
connector termi- nuity within the connector cable. If none,
nals. remedy or replace the cable.
Defective exposure Replace the exposure lamp or inverter PCB.
lamp or inverter
PCB.
Defective engine Replace the engine PCB and check for cor-
PCB. rect operation.
Incorrect shading Adjust the position of the contact glass
position. (shading plate). If the problem still occurs,
replace the scanner home position switch.
Insufficient expo- Replace the exposure lamp or inverter PCB.
sure lamp luminos-
ity.
Defective engine Replace the engine PCB and check for cor-
PCB. rect operation.
Incorrect shading Adjust the position of the contact glass
position. (shading plate). If the problem still occurs,
replace the scanner home position switch.
Defective CCD Replace the ISU.
PCB.
Poor contact in the Reinsert the connector. Also check for conti-
polygon motor con- nuity within the connector cable. If none,
nector terminals. remedy or replace the cable.
Defective polygon Replace the LSU.
motor.
Defective engine Replace the engine PCB and check for cor-
PCB. rect operation.
Poor contact in the Reinsert the connector. Also check for conti-
polygon motor con- nuity within the connector cable. If none,
nector terminals. remedy or replace the cable.
Defective polygon Replace the LSU.
motor.
Defective engine Replace the engine PCB and check for cor-
PCB. rect operation.
Defective laser Replace the LSU.
diode.
Defective polygon Replace the LSU.
motor.
Defective main Replace the main PCB and check for correct
PCB. operation.
Defective engine Replace the engine PCB and check for cor-
PCB. rect operation.
Remarks