Read Sharp MX-B381 / MX-B401 (serv.man7) Service Manual online
MX-B381/B401 SIMULATION 5 – 58
46-24
Purpose
Adjustment
Function (Purpose) Copy density and gradation adjustment
(Auto adjustment)
Section
Operation/Procedure
1)
1)
Press [EXECUTE] key.
The patch image (adjustment pattern) is printed out.
The patch image (adjustment pattern) is printed out.
2)
Plate the printed adjustment pattern on the document table.
3)
Press [EXECUTE] key.
The copy density and gradation adjustment is performed, then
the adjustment result pattern is printed.
The copy density and gradation adjustment is performed, then
the adjustment result pattern is printed.
4)
Press [OK] key.
The half tone correction target registration is processed.
The half tone correction target registration is processed.
46-32
Purpose
Adjustment/Setup
Function (Purpose) Used to adjust the document background
density reproducibility in the monochrome
auto copy mode.
auto copy mode.
Section
Operation/Procedure
1)
1)
Select a target item of setting with [
] [] key.
2)
Enter the set value with 10-key.
3)
Press [OK] key. (The set value is saved.)
When the adjustment value is increased, reproducibility of the
background and the low density image is increased. When the
adjustment value is decreased, reproducibility of the background
and the low density image is decreased.
background and the low density image is increased. When the
adjustment value is decreased, reproducibility of the background
and the low density image is decreased.
46-37
Purpose
Adjustment/Setup
Function (Purpose) Used to adjust the color document repro-
ducibility in the monochrome copy mode.
Section
Operation/Procedure
1)
1)
Select a target item with [
] [] keys.
2)
Enter the set value with 10-key.
3)
Press [EXECUTE] key.
4)
Press [YES] key.
This simulation is used to adjust the reproducibility of red and yel-
low images when copy a color document of red and yellow images
in the monochrome mode.
low images when copy a color document of red and yellow images
in the monochrome mode.
When [DEFAULT] key is pressed, it is set to the default value.
When the adjustment values of items A and B are decreased, the
copy density of yellow images is increased. When the adjustment
values are increased, the density is decreased.
When the adjustment value of item A is decreased and the adjust-
ment value of item B is increased, the copy density of red images is
increased. When the adjustment value of item A is increased and
the adjustment value of item B is decreased, the copy density is
decreased.
When the adjustment values of items A and B are decreased, the
copy density of yellow images is increased. When the adjustment
values are increased, the density is decreased.
When the adjustment value of item A is decreased and the adjust-
ment value of item B is increased, the copy density of red images is
increased. When the adjustment value of item A is increased and
the adjustment value of item B is decreased, the copy density is
decreased.
46-39
Purpose
Adjustment/Setup
Function (Purpose) Used to adjust the sharpness of FAX send
images.
Section
Operation/Procedure
1)
1)
Select a target item with [
] [] keys.
2)
Enter the set value with 10-key.
3)
Press [OK] key. (The set value is saved.)
Item/Display
Content
Setting
range
Default
value
A
COPY : OC
Copy mode (for OC)
1 - 250
196
B
COPY : RSPF
Copy mode (for RSPF)
1 - 250
196
C
SCAN : OC
Scanner mode (for OC)
1 - 250
196
D
SCAN : RSPF
Scanner mode
(for RSPF)
(for RSPF)
1 - 250
196
E
FAX : OC
FAX mode (for OC)
1 - 250
196
F
FAX : RSPF
FAX mode (for RSPF)
1 - 250
196
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Item/Display
Content
Setting
range
Default
value
A
R-Ratio
Gray making setting (R)
0 - 1000
172
B
G-Ratio
Gray making setting (G)
0 - 1000
828
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