Trouble Codes; Trouble Codes List; Details Of Trouble Codes - Sharp AL-2020 Service Manual

5. Trouble codes

A. Trouble codes list
Main Sub
code code
E1 00 IMC communication trouble
10 IMC trouble
13 IMC flash ROM error
81 IMC communication interface error (Parity)
82 IMC communication interface error (Overrun)
84 IMC communication interface error (Framing)
E7 01 Duplex model memory setup error, memory not-
detected error
02 LSU trouble
10 Shading trouble (Black correction)
11 Shading trouble (White correction)
16 Abnormal laser output
F5 02 Copy lamp lighting abnormality
F6 10 FAX board trouble (AL-2060 only)
H2 00 Thermistor open
H3 00 Heat roller high temperature detection
H4 00 Heat roller low temperature detection
L1 00 Feeding is not completed within the specified time
after starting feeding. (The scan head locking switch
is locked)
L3 00 Scanner return trouble
L4 01 Main motor lock detection
32 Exhaust fan motor lock detection trouble
L6 10 Polygon motor lock detection
U1 03 FAX board battery error (AL-2060 only)
U2 04 EEPROM read/write error (Serial communication
error)
11 Counter check sum error (EEPROM)
B. Details of trouble codes
Main Sub
code code
E1 00 Content IMC communication trouble
Detail An abnormality occurs in communication
between the CPU and the IMC.
Cause IMC abnormality
IMC memory defect/data abnormality
Check Replace the MCU PWB with new one.
and
remedy
10 Content IMC trouble
Detail An abnormality occurs in the IMC.
Cause USB chip error/CODEC error on the IMC.
Check Replace the MCU PWB with a new one.
and
remedy
13 Content IMC flash ROM error
Detail An abnormality occurs in the IMC flash
ROM.
Cause IMC abnormality
Check Replace the MCU PWB with a new one.
and If downloading of the program is abnormally
remedy terminated, it may cause an error. Download
the program again to avoid this.
Details of trouble
Details of trouble
AL-2020/2035/2040/2050/2060 SIMULATION, TROUBLE CODES 10 - 40
Main Sub
code code
E1 81 Content IMC communication interface error (Parity)
Detail A parity error occurs in communication
between the CPU and the IMC.
Cause IMC abnormality
IMC memory defect/data abnormality
Check Replace the MCU PWB with new one.
and
remedy
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 Replace the MCU PWB with new one.
and
remedy
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 Replace the MCU PWB with new one.
and
remedy
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 Set SIM 26-39 code number to 2.
and
remedy
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 Check connection of the LSU connector.
and Execute SIM 61-03 to check the LSU
remedy 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 Check connection of the CCD unit flat cable.
and Check the CCD unit.
remedy
Details of trouble