Read Sharp AL-1622 (serv.man13) Service Manual online
AL-1611/AL-1622
TROUBLE CODE LIST
10 – 3
E7
03
Check and
remedy
remedy
Improper connection of the LSU connec-
tor
Check the polygon motor operation with
SIM 25-10.
Check printing with SIM64-1.
Check laser emission of laser emitting
diode.
Check the LSU unit.
Check the MCU PWB.
tor
Check the polygon motor operation with
SIM 25-10.
Check printing with SIM64-1.
Check laser emission of laser emitting
diode.
Check the LSU unit.
Check the MCU PWB.
04
Content
CCD white level trouble
Detail
CCD white reference level which is read
during the copy lamp lighting is abnor-
mal.
during the copy lamp lighting is abnor-
mal.
Cause
Flat cable installation failure to CCD unit
Dirt on the mirror, lens, and reference
white plate
Copy lamp lighting failure
CCD unit installation failure
CCD unit abnormality
MCU PWB abnormality
Dirt on the mirror, lens, and reference
white plate
Copy lamp lighting failure
CCD unit installation failure
CCD unit abnormality
MCU PWB abnormality
Check and remedy Clean the mirror, the
lens, and the reference white plate.
Check the copy lamp (SIM 5-3) ON.
Carriage unit position failure
Check the sub scanning direction distor-
tion adjustment (F rail height).
CCD unit check
MCU PWB check
lens, and the reference white plate.
Check the copy lamp (SIM 5-3) ON.
Carriage unit position failure
Check the sub scanning direction distor-
tion adjustment (F rail height).
CCD unit check
MCU PWB check
05
Content
CCD black level trouble
Detail
CCD black level which is read while the
copy lamp is off is abnormal.
copy lamp is off is abnormal.
Cause
Flat cable installation failure
CCD unit abnormality
MCU PWB abnormality
CCD unit abnormality
MCU PWB abnormality
Check and
remedy
remedy
Check flat cable installation to the CCD
unit.
CCD unit check
MCU PWB check
unit.
CCD unit check
MCU PWB check
F1
06
Content
Shifter motor trouble
Details
The home position is not detected within
1 sec after shifter motor drive.
1 sec after shifter motor drive.
Cause
The shifter home position sensor is
defective.
The shifter motor is defective.
The shifter motor periphery circuit is
defective.
The condition of the MCU PWB JP4 is
wrong.
The assembly of the shifter motor unit is
improper.
defective.
The shifter motor is defective.
The shifter motor periphery circuit is
defective.
The condition of the MCU PWB JP4 is
wrong.
The assembly of the shifter motor unit is
improper.
Check and
remedy
remedy
Check the shifter operation by means of
SIM3-2 and 3.
Check the harnesses and connectors.
Check whether the shifter unit is properly
assembled.
Check whether the condition of the MCU
PWB JP4 is correct.
SIM3-2 and 3.
Check the harnesses and connectors.
Check whether the shifter unit is properly
assembled.
Check whether the condition of the MCU
PWB JP4 is correct.
F2
04
Content
CRUM data read trouble
Detail
Communication error between CRUM
PWB and MCU PWB
PWB and MCU PWB
Cause
CRUM PWB data error
MCU PWB error
MCU PWB EEPROM error
Disconnection between CRUM (toner
cartridge) and MCU PWB
MCU PWB error
MCU PWB EEPROM error
Disconnection between CRUM (toner
cartridge) and MCU PWB
Main
code
code
Sub
code
code
Detail of trouble
F2
04
Check and
remedy
remedy
Replace the toner cartridge.
Replace MCU PWB.
Replace MCU PWB EEPROM
Check and fix connection between
CRUM (toner cartridge) and MCU PWB.
Replace MCU PWB.
Replace MCU PWB EEPROM
Check and fix connection between
CRUM (toner cartridge) and MCU PWB.
F5
02
Content
Copy lamp error
Detail
Copy lamp voltage detection error
Cause
Power unit trouble Copy lamp trouble
Inverter trouble MCU PWB trouble
Inverter trouble MCU PWB trouble
Check and
remedy
remedy
Replace the power unit.
Check the copy lamp ON with SIM 5-3.
Replace the copy lamp.
Replace the inverter.
Replace the MCU PWB.
Check the copy lamp ON with SIM 5-3.
Replace the copy lamp.
Replace the inverter.
Replace the MCU PWB.
F9
00
Content
Communication trouble between MCU
and printer PWB (MCU detection)
and printer PWB (MCU detection)
Detail
Communication establishment error,
framing error, parity error, protocol error
framing error, parity error, protocol error
Cause
Bad connection of printer PWB connec-
tor
Defective harness between printer PWB
and MCU PWB.
Motherboard connector pin breakage
Printer PWB ROM error, data error
tor
Defective harness between printer PWB
and MCU PWB.
Motherboard connector pin breakage
Printer PWB ROM error, data error
Check and
remedy
remedy
Check connector/harness of printer PWB
and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
10
Content
Printer PWB trouble
Detail
Communication trouble between MCU
and printer PWB
and printer PWB
Cause
Bad connection of printer PWB connec-
tor
Defective harness between printer PWB
and MCU PWB.
Motherboard connector pin breakage
Printer PWB ROM error, data error
tor
Defective harness between printer PWB
and MCU PWB.
Motherboard connector pin breakage
Printer PWB ROM error, data error
Check and
remedy
remedy
Check connector/harness of printer PWB
and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
80
Content
Printer PWB communication trouble
(Protocol)
(Protocol)
Detail
Communication trouble between MCU
and printer PWB (Protocol error)
and printer PWB (Protocol error)
Cause
Bad connection of printer PWB connec-
tor
Defective harness between printer PWB
and MCU PWB.
Motherboard connector pin breakage
Printer PWB ROM error, data error
tor
Defective harness between printer PWB
and MCU PWB.
Motherboard connector pin breakage
Printer PWB ROM error, data error
Check and
remedy
remedy
Check connector/harness of printer PWB
and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
81
Content
Printer PWB communication trouble
(Parity)
(Parity)
Details
Communication trouble between MCU
and printer PWB (Parity error)
and printer PWB (Parity error)
Cause
Printer PWB connector disconnection
Printer PWB MCU PWB harness failure
Printer PWB mother board connector pin
breakage. Printer PWB ROM defect,
data failure
Printer PWB MCU PWB harness failure
Printer PWB mother board connector pin
breakage. Printer PWB ROM defect,
data failure
Main
code
code
Sub
code
code
Detail of trouble
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