Kyocera KM-3050 - Page 170

2GN/2GP/2GR
1-4-30
C3210 CIS lamp problem
After the reading starting, when input
value at the time of CIS illumination does
not exceed the threshold value between
5 s.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
main PWB and the connector on the DP
main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective DP main
PWB.
Replace the DP main PWB and check for
correct operation.
Defective DP
inverter PWB.
Replace the DP inverter PWB and check for
correct operation.
Defective CIS. Replace the CIS and check for correct oper-
ation.
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 on the
SHD PWB and the connector on the CCD
PWB, and the continuity across the connec-
tor terminals. Repair or replace if necessary.
Defective exposure
lamp.
Replace the exposure lamp or inverter
PWB.
Defective PWB. Replace the SHD PWB or CCD PWB and
check for correct operation.
C3310 CIS AGC problem
After AGC, correct input is not obtained
at CIS.
Defective DP main
PWB.
Replace the DP main PWB and check for
correct operation.
CIS output prob-
lem.
Replace the CIS and check for correct oper-
ation.
Defective DP
inverter PWB.
Replace the DP inverter PWB and check for
correct operation.
C3500 Communication error between scan-
ner and SHD
An error code is detected.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC3 on
the scanner PWB and the connector YC4 on
the SHD PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective PWB. Replace the scanner PWB or SHD PWB and
check for correct operation.
C3900 Backup memory read/write problem
(scanner PWB)
Read and write data does not match.
Defective backup
RAM or scanner
PWB.
Replace the scanner PWB and check for
correct operation.
C3910 Backup memory data problem (scan-
ner PWB)
Data in the specified area of the backup
memory does not match the specified
values.
Problem with the
backup memory
data.
Run maintenance item U022 to initialize the
backup memory data.
Defective scanner
PWB.
If the C3910 is displayed after initializing the
backup memory, replace the scanner 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 YC8 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.
Code Contents
Remarks
Causes Check procedures/corrective measures