Service manual

AL-2030/2040CS/2050CS SIMULATION, TROUBLE CODES 10 - 31
E1 82 Content IMC communication interface error
(Overrun)
Detail An overrun error occurs in communication
between the CPU and the IMC.
Cause IMC abnormality
IMC memory defect/data abnormality.
Check
and
remedy
Replace the MCU PWB with new one.
84 Content IMC communication interface error
(Framing)
Detail A framing error occurs in communication
between the CPU and the IMC.
Cause IMC abnormality
IMC memory defect/data abnormality.
Check
and
remedy
Replace the MCU PWB with new one.
E7 01 Content Duplex model memory setup error, memory
not-detected error
Detail The memory is not set properly or the
memory capacity is not set to the duplex
setup (6M).
Check
and
remedy
Set SIM 26-39 code number to 2.
02 Content LSU trouble
Detail The BD signal from the LSU cannot be
detected in a certain cycle. (Always OFF or
always ON)
Cause LSU connector or LSU harness defect or
disconnection
Polygon motor rotation abnormality
Laser beams are not generated.
MCU PWB abnormality.
Check
and
remedy
Check connection of the LSU connector.
Execute SIM 61-03 to check the LSU
operations.
Check that the polygon motor rotates
normally.
Check that the laser emitting diode
generates laser beams.
Replace the LSU unit.
Replace the MCU PWB.
10 Content Shading trouble (Black correction)
Detail The CCD black scan level is abnormal when
the shading.
Cause Improper connection of the CCD unit flat
cable
CCD unit abnormality
MCU PWB abnormality
Check
and
remedy
Check connection of the CCD unit flat cable.
Check the CCD unit.
Main
code
Sub
code
Details of trouble
E7 11 Content Shading trouble (White correction)
Detail The CCD white scan level is abnormal when
the shading.
Cause Improper connection of the CCD unit flat
cable
Dirt on the mirror, the lens, and the reference
white plate
Copy lamp lighting abnormality
CCD unit abnormality
MCU PWB abnormality
(When occurred in the SPF/RSPF scan
position.)
Improper installation of the mirror unit
Check
and
remedy
Clean the mirror, lens, and the reference
white plate.
Check the light quantity and lighting status of
the copy lamp (SIM 05-03).
Check the MCU PWB.
16 Content Abnormal laser output
Detail When the laser output is stopped, HSYNC is
detected.
Cause Laser abnormality
MCU PWB abnormality.
Check
and
remedy
Check the laser emitting diode operation.
Replace the MCU PWB.
F5 02 Content Copy lamp lighting abnormality
Detail The copy lamp does not turn on.
Cause Copy lamp abnormality
Copy lamp harness abnormality
CCD PWB harness abnormality.
Check
and
remedy
Use SIM 5-3 to check the copy lamp
operations.
When the copy lamp lights up.
Check the harness and the connector
between the CCD unit and the MCU PWB.
When the copy lamp does not light up.
Check the harness and the connector
between the copy lamp unit and the MCU
PWB.
Replace the copy lamp unit.
Replace the MCU PWB.
H2 00 Content Thermistor open
Detail The thermistor is open.
The fusing unit is not installed.
Cause Thermistor abnormality
Control PWB abnormality
Fusing section connector disconnection
The fusing unit is not installed.
Check
and
remedy
Check the harness and the connector
between the thermistor and the PWB.
Use SIM 14 to clear the self diagnostic
display.
Main
code
Sub
code
Details of trouble