AL-1566 (serv.man13). Test command, fax soft switch, trouble codes - Sharp Copying Equipment Service Manual (repair manual). Page 11

AL-1556/1566  TEST COMMAND, FAX SOFT SWITCH, TROUBLE CODES  10 - 11

24

13

Scanner counter clear 
(SCAN CLR.)

[Function]
When [OK/START] key is pressed, the scanner counter value is cleared to 0, and "000,000" is 
displayed on the LCD.

14

SPF JAM total counter clear 
(S JAM TTL CLR.)

[Function]
When [OK/START] key is pressed, the SPF JAM total counter value is cleared to 0, and "000,000" is
displayed on the LCD.

15

Scanner mode counter clear 
(S-MODE CLR.)

[Function]
When [OK/START] key is pressed, the scanner mode counter value is cleared to 0, and "000,000" is
displayed on the LCD.

25

01

Main motor operation check 
(MAIN MOTOR CHK)

[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.

10

Polygon motor operation 
check (LSU CHK)

[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.

26

02

(R)SPF setting (SPF/RSPF)

[Function]
When this test command is executed, the current set SPF is displayed. Enter the code number corre-
sponding to the desired SPF and press [OK/START] key to save the setting.

[Operation]
The operation is similar to test command 21-01.

Main 
code

Sub 

code

Contents

Details of function/operation

1) Initial display

24-13 SCAN CLR.

CLEARED       000,000

1) Initial display

24-14 S JAM TTL CLR.

CLEARED       000,000

1) Initial display

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

Display item

0

SPF  NO

SPF  OFF

1

SPF YES

SPF ON

2

RSPF YES

RSPF ON