AL-840 (serv.man7). AL800 840 Service Manual-Simulation codes - Sharp Copying Equipment Service Manual (repair manual). Page 20

4) Change the set value and press the start button.

When the set value is made greater, the image lead edge reference position is shifted forward.

When the set value is made smaller, the image lead edge reference position is shifted backward.

(Note) If this adjustment is not made properly, when the copy magnification ratio is changed, the copy image position

varies for the paper lead edge position.

5) Select the adjustment mode lead edge void area with the copy picture quality mode select key. (The currently

set adjustment value is displayed on the copy quantity display.)

6) Change the set value and press the start button. 

7) Select the adjustment mode rear edge void area with the copy quality mode select key.

(The currently set adjustment mode is displayed on the copy quantity display.)

8) Change the set value and press the start button. 

The adjustment value can be set in the range of 0 ~ 99.

Note

50 - 10

Purpose

Adjustment

Function
(Purpose)

Used to adjust the main scanning direction print image position. (Main scanning direction void area adjustment)

Section

ICU

Item

Picture quality

Operation/
Procedure

1) Select the adjustment item with the copy image mode select key.

Adjustment mode

Adjustment mode display (ON)

Note

Main scanning direction image
position

Photo copy mode lamp

Main scanning direction image
position (SPF mode)

Auto/Photo/Manual copy mode lamp

Left void area

Auto copy mode lamp

Right void area

Manual copy mode lamp

2) To change the copy image position in the main scanning direction for the paper in a copy mode (to change

the main scanning direction void area), change the adjustment value and press the start button. 
(The adjustment value is stored and a copy is made corresponding to the setting.)
The adjustment value can be set in the range of 0 ~ 99.

When the adjustment value is changed by "1," the copy image position is shifted by 0.1mm in the main
scanning direction for the paper. 

When the main scanning direction copy magnification ratio is adjusted with SIM 48-1 (auto mode), this
adjustment is automatically performed and there is no need to enter the adjustment value with this simulation.
If the adjustment is not made properly, use this simulation to make a manual adjustment. (Except for the SPF
mode. In the case of the SPF mode, the adjustment with this simulation is required.)

3) To change the left and the right void areas, select the adjustment mode, change the adjustment value and

press the start button. 
(The adjustment value is stored and a copy corresponding to the setting is made.)
The adjustment value can be set in the range of 0 ~ 99.
When the adjustment value is changed by "1," the void area is changed by 0.1mm,

Note

61 - 3

Purpose

Operation test/check

Function
(Purpose)

Used to check the operation of the scanner (writing) section.

Section

Laser (Exposure)

Item

Operation

Operation/
Procedure

While laser beams are outputted, the scanner(writing) motor rotates for 30 sec.
At that time, the zoom mode display lamp lights up for 100msec every time when the laser beam sensor detects
laser beam,

Note

8 – 20