AL-840 (serv.man7). AL800 840 Service Manual-Simulation codes - Sharp Copying Equipment Service Manual (repair manual). Page 18

Read Sharp AL-840 (serv.man7) Service Manual online

Operation/
Procedure
1) The currently set code of the fusing temperature (after 20th sheet of continuous printing) is displayed.
2) To change to the standard set temperature, press the code corresponding to the standard set temperature and
press the start button. 
Be sure to set to "2" (155°C). 
If set to other than "1," a trouble may occur.
Set code
Fusing temperature (°C)
0
160
1
150
2
155
3
165
4
170
5
175
Note
If not, a trouble may occur.
46
46 - 1
Purpose
Adjustment
Function
(Purpose)
Used to adjust the copy density.
(The print density in each mode and the overall print density (overall setting of the specified density gradient) can
be adjusted.
Section
Item
Picture quality
Density
Operation/
Procedure
By adjusting the exposure level of the center density, the other copy density levels (density levels 1, 2, 4, 5) can
be automatically calculated and adjusted. 
The gamma curve (gradient) is fixed and cannot be changed. By changing the adjustment value, however, the
gamma curve is shifted (with the fixed gradient). 
Therefore, the overall copy density is changed. 
The above adjustment is made for each copy mode. 
Each copy mode and each copy density level (5 steps) have their own gamma curve (gradient). The adjustment
value can be set in the range of 0 ~ 99.
1) Select the picture quality mode with the copy picture quality mode select key. 
(The currently set copy density adjustment level is displayed on the copy quantity display.)
2) To change the copy density, change the adjustment value and press the start button. 
(The adjustment value is stored and a copy is made.)
To decrease the copy density, decrease the adjustment value, and vice versa.
Adjustment mode
Mode display lamp
Density 
level
Density (Test chart UKOG-0162FCZZ gray scale
density level)
Auto copy mode
Auto copy mode lamp
Gray scale "3" is slightly copied.
Manual copy mode
Text copy mode lamp
3
Gray scale "3" is slightly copied.
Photo copy mode
Photo copy mode lamp
3
Gray scale "3" is slightly copied.
Auto (Toner save)
copy mode
Auto copy mode lamp
Gray scale "3" is slightly copied.
Photo copy mode lamp
Manual (Toner save)
copy mode
Manual copy mode
lamp
3
Gray scale "3" is slightly copied.
Photo copy mode lamp
Note
48
48 - 1
Purpose
Adjustment
Function
(Purpose)
Used to adjust the coy magnification ratio (in the main scanning direction and the sub scanning direction).
Section
Item
Picture quality
8 – 18
Page of 22
Display

Click on the first or last page to see other AL-840 (serv.man7) service manuals if exist.