Gear - Kyocera Mita KM-1530 Service Manual

Code Contents
C100 Exposure lamp problem
• Check the CCD input value for the
lighting status of the exposure lamp
100 ms after the exposure lamp is lit
and the carriage is moved to the
shading position. If the exposure lamp
does not light, turn off the lamp. After
500 ms, light the lamp again and, a
further 500 ms later, check the CCD
input.
The exposure lamp does not light
after 5 retries.
C104 Optical system problem
• After AGC, correct input is not
obtained at CCD.
C200 Drive motor problem
• LOCK ALM signal remains high for 1
s, 1 s after the drive motor has turned
on.
C310 Scanner carriage problem
• The home position is not correct
when the power is turned on or at the
start of copying using the contact
glass.
C400 Polygon motor synchronization
problem
• The polygon motor does not reach a
stable speed within 19 s of the polygon
motor remote signal turning on.
Causes Check procedures/corrective measures
Poor contact of Check the connection of connectors CN24,
the connector CN23, CN22 and CN3 on the main PCB,
terminals. and the continuity across the connector
terminals. Repair or replace if necessary.
Defective Replace the exposure lamp or inverter
exposure lamp. PCB.
Defective main Replace the main PCB and check for
PCB. correct operation.
Incorrect shading Adjust the position of the contact glass
position. (shading plate). If the problem still occurs,
replace the scanner home position switch.
CCD PCB output Replace the ISU.
problem.
Poor contact of Check the connection of connectors CN23,
the connector CN22 and CN3 on the main PCB, and the
terminals. continuity across the connector terminals.
Repair or replace if necessary.
CCD PCB output Replace the ISU.
problem.
Defective main Replace the main PCB and check for
PCB. correct operation.
Poor contact of Reinsert the connector. Also check for
the drive motor continuity within the connector cable. If
connector none, repair or replace the cable.
terminals.
Defective drive Replace the drive motor.
motor rotation
control circuit.
Defective drive Check if the rollers and gears rotate
transmission smoothly. If not, grease the bushings and
system. gears. Check for broken gears and replace
if any.
Poor contact of Check the connection of connectors CN28
the connector and CN25 on the main PCB and the
terminals. continuity across the connector terminals.
Remedy or replace if necessary.
Defective scanner Replace the scanner home position switch.
home position
switch.
Defective main Replace the main PCB and check for
PCB. correct operation.
Defective scanner Replace the scanner motor.
motor.
Poor contact of Reinsert the connector. Also check for
the polygon motor continuity within the connector cable. If
connector none, repair or replace the cable.
terminals.
Remarks
2AV/X
1-5
1-5-13