SERVICE MANUAL - O. Rensch OHG

2DC
Code
Contents
Causes
Remarks
Check procedures/corrective measures
C3200
(A3200*)
Exposure lamp problem
• In indicator check before starting
copying, the average value in scanning
of the shading plate with the
CCD is 128 or more.
Defective scanner
board (KP-5063).
Defective exposure
lamp or inverter
board.
Replace the scanner board (KP-5063) and
check for correct operation.
Replace the exposure lamp or inverter
board.
Incorrect shading
position.
Adjust the position of the contact glass
(shading plate). If the problem still occurs,
replace the scanner home position sensor.
Poor contact of
the connector terminals.
Check the connection of connector YC-6
on the scanner board (KP-5063), and the
continuity across the connector terminals.
Repair or replace if necessary.
C3300
(A3300*)
Optical system (AGC) problem
• After AGC, correct input is not obtained
at CCD.
Insufficient exposure
lamp luminosity.
Replace the exposure lamp or inverter
board.
Defective scanner
board (KP-5063).
Replace the scanner board (KP-5063) and
check for correct operation.
Incorrect shading
position.
Adjust the position of the contact glass
(shading plate). If the problem still occurs,
replace the scanner home position sensor.
C4000
(A4000*)
Polygon motor synchronization
problem
• The polygon motor does not reach
the stable speed within 15 s of the
START signal turning on.
Poor contact in
the polygon motor
connector terminals.
Defective polygon
motor.
Reinsert the connector. Also check for continuity
within the connector cable. If none,
remedy or replace the cable.
Replace the LSU.
Defective engine
board (KP-5061).
Replace the engine board (KP-5061) and
check for correct operation.
C4010
(A4010*)
Polygon motor steady-state problem
• The polygon motor rotation is not
stable for 5 s after the polygon motor
rotation has been stabilized.
Poor contact in
the polygon motor
connector terminals.
Reinsert the connector. Also check for continuity
within the connector cable. If none,
remedy or replace the cable.
Defective polygon
motor.
Replace the LSU.
Defective engine
board (KP-5061).
Replace the engine board (KP-5061) and
check for correct operation.
C4200
(A4200*)
BD steady-state problem
• The MIC detects a BD error for 600
ms after the polygon motor rotation
has been stabilized.
Defective laser
diode.
Defective polygon
motor.
Replace the LSU.
Replace the LSU.
Defective main
board (KP-5060).
Replace the main board (KP-5060) and
check for correct operation.
“A” is displayed on the market.
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