Trouble Codes; Trouble Codes List; Details Of Trouble Codes - Sharp AL2020 Service Manual

Main Sub
code code
64 01 Self print
Print of one page is made regardless of the status of the optical system.
(Operating procedure)
When this simulation is executed, warm-up is performed and the ready lamp is lighted. Enter the code number with the 10-key,
and select the cassette with the cassette select key and press the PRINT switch, and paper feed operation will be made from
the selected cassette and printing of the selected pattern will be made. Printing is in 1by2 mode, or grid pattern.
Code number
0
1
2
3
67 50 USB receive speed adjustment (USB1.1)
Used to set the limitation on the print data receive speed of USB2.0 (Full speed) port (USB port on the machine).
→ When print images from USB2.0 (Full speed) port are disturbed, change the setting and try again.
When this simulation is executed, the currently set code number is displayed.
Enter the code number corresponding to the adjustment value, and press START key to change the setting.
Code number
1
2
3
4

4. Trouble codes

A. Trouble codes list
Main Sub
code code
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
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
U2 04 EEPROM read/write error (Serial communication
error)
11 Counter check sum error (EEPROM)
Pattern
1by2
Grid pattern
White paper
Black background
Setting
FAST
NORMAL1
NORMAL2
SLOW
Details of trouble
AL-2040 SIMULATION, TROUBLE CODES 10 - 17
Content
Speed
↑ Fast
↓ Slow
B. Details of trouble codes
Main Sub
code code
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
and cable.
remedy Check the CCD unit.
Details of trouble