Self-Diagnosis; Self-Diagnostic Function; Self-Diagnostic Codes - Kyocera Mita KM-1505 Service Manual

1-5-2 Self-diagnosis

(1) Self-diagnostic function

This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled. "C" and a number
between 011 and 731 altenates, indicating the nature of the problem.
After removing the problem, the self-diagnostic function can be reset by turning safety switch off and back on.
(2) Self diagnostic codes
Code Contents
A011 Backup memory data problem
(C011) • Data in the specified area of the
backup memory does not match the
specified values.
A100 Exposure lamp problem
(C100) • 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.
A104 Optical system problem
(C104) • After AGC, correct input is not
obtained at CCD.
Causes Check procedures/corrective measures
Problem with the Turn safety switch off and back on and run
backup memory maintenance item U020 to set the contents
data. of the backup memory data again.
Defective backup If the C011 is displayed after re-setting the
RAM. backup memory contents, replace the
backup RAM.
Poor contact of Check the connection of connector CN12
the connector on the main PCB, and the continuity across
terminals. the connector terminals. Repair or replace
if necessary.
Defective Replace the exposure lamp.
exposure lamp.
Defective main Replace the main PCB or inverter PCB and
PCB or inverter check for correct operation.
PCB.
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 connector CN12
the connector on the main PCB, and the continuity across
terminals. the connector terminals. Repair or replace
if necessary.
Defective Replace the exposure lamp.
exposure lamp.
Defective main Replace the main PCB or inverter PCB and
PCB or inverter check for correct operation.
PCB.
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.
Remarks
2BT
1-5-7