Kyocera KM-2530 - Page 187

2DF
1-5-34
Code Contents
Remarks
Causes Check procedures/corrective measures
C3100
C3200
C3300
C4000
Scanner carriage problem
• The home position is not correct
when the power is turned on or at the
start of copying using the bypass ta-
ble.
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 af-
ter 5 retries.
Optical system problem
• After AGC, correct input is not ob-
tained at CCD.
Polygon motor synchronization
problem
• When the polygon motor starts, the
motor does not become stable even
after 20 s.
Poor contact in
the connector ter-
minals.
Defective scanner
home position
switch.
Defective main
PCB or scanner
drive PCB.
Defective scanner
motor.
Poor contact of
the connector ter-
minals.
Defective expo-
sure lamp.
Defective main
PCB.
Incorrect shading
position.
Poor contact of
the connector ter-
minals.
Defective main
PCB.
Poor contact in
the polygon motor
connector termi-
nals.
Defective polygon
motor.
Defective power
source PCB.
Defective main
PCB.
Check the connection of connector CN37
on the main PCB and the continuity across
the connector terminals. Repair or replace
if necessary.
Replace the scanner home position switch.
Replace the main PCB or scanner drive
PCB and check for correct operation.
Replace the scanner motor.
Check the connection of connectors CN34
and CN37 on the main PCB, and the conti-
nuity across the connector terminals. Re-
pair or replace if necessary.
Replace the exposure lamp or inverter
PCB.
Replace the main PCB and check for cor-
rect operation.
Adjust the position of the contact glass
(shading plate). If the problem still occurs,
replace the scanner home position switch.
Check the connection of connector CN34
on the main PCB, and the continuity across
the connector terminals. Repair or replace
if necessary.
Replace the main PCB and check for cor-
rect operation.
Reinsert the connector. Also check for con-
tinuity within the connector cable. If none,
remedy or replace the cable.
Replace the LSU (see page 1-6-20).
Check if 24 V DC is supplied to CN2-1 on
the main PCB. If not, replace the power
source PCB.
Check if 24 V DC is output from CN8-10 on
the main PCB. If not, replace the main
PCB.