Sharp AL-2020, Service Manual

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AL-2020/2035/2040/2050/2060 SIMULATION, TROUBLE CODES 10 - 11
24 15 Scanner mode counter clear [Function]
When [OK]/[START] key is pressed, the scanner mode counter value is cleared to 0, and
"000,000" is displayed on the LCD/display.
[Operation]
25 01 Main motor operation check
(Cooling fan motor rotation
check) [Function]
When [OK]/[START] key is pressed, the main motor (and the duplex motor in the case of a
duplex model) is operated for 30sec.
To reduce toner consumption, if the developing unit is installed, the developing bias, the main
charger, and the grid are also outputted.
In this case, laser discharge is required when stopping the motor, the polygon motor is also
operated at the same time. Check for installation of the developing unit. If it is not installed, the
high voltage above is not outputted and only the motor is rotated.
To check the developing bias, install the developing unit.
After completion of 30sec operation, the machine goes into the sub code entry standby mode.
[Operation] (AL-2050/2060)
10 Polygon motor ON [Function]
When [OK]/[START] key is pressed, the Bios is called to rotate the polygon motor for 30sec.
After completion of 30sec operation, the operation is turned off with the Bios and the machine
goes into the sub code entry standby mode.
[Operation] (AL-2050/2060)
26 02 SPF/RSPF setup
(excluding AL-2020) [Function]
When this simulation is executed, the current set SPF/RSPF is displayed. Enter the code num-
ber corresponding to the desired SPF/RSPF and press [OK]/[START] key to save the setting.
[Operation]
04 Machine duplex setup [Function]
When this simulation is executed, the current set duplex is displayed. Enter the code number
corresponding to the desired duplex and press [OK]/[START] key to save the setting.
[Operation]
The operation is similar to simulation 26-02.
Main
code Sub
code
Contents Details of function/operation
AL-2050/2060
1) Initial display
AL-2020/2035/2040
The operation is similar to simulation 22-16.
24-15 S-MODE CLR.
CLEARED 000,000
1) Initial display
25-01 MAIN MOTOR CHK
EXECUTING...
1) Initial display
25-10 LSU CHK
EXECUTING...
Code number SPF/RSPF Display item
0 SPF NO SPF OFF
1 SPF YES SPF ON
2 RSPF YES RSPF ON
AL-2050/2060
1) The current set value is
displayed.
2) [Numeric] key or [ ] key
2) [Numeric] key or [ ] key
3) [OK]/[START] key
AL-2035/2040
1) Press [ ] [ ] key to
change the code number.
2) Press [START] key to fix
the code number.
26-02 SPF/RSPF
1:SPF ON (0- 2)
26-02 SPF/RSPF
0:SPF OFF (0- 2)
26-02 SPF/RSPF
2:RSPF ON (0- 2)
26-02 SPF/RSPF
2:RSPF ON (0- 2)
Code number Duplex Display item
0 Duplex NO OFF
1 Duplex YES ON