Sharp AR-BC260 Service Manual page 190

46 -27
Purpose Adjustment
Function Used to adjust the gamma/density in the black edge
(Purpose) section of the copy mode image. (Black text and
black line reproduction adjustment)
Section Image process (ICU)
Item Picture quality
Operation/ 1. Select the color to be adjusted with the color key
Procedure (C/M/Y).
2. Select the adjustment item with the scroll key.
3. Enter the adjustment value of the selected point with the 10-
key and press the [OK] key. (The entered value is set.)
Text and line edge area reproduction is adjusted by changing the
gamma and the overall density level in the image edge section.
For especially thin text, the boldness of lines is changed.
The greater the adjustment value is, the higher the image density
in the edge area is, and vice versa.
(Items to be set)
Display Content
A BLACK TEXT Black image edge
(SLOPE) section gamma (tilt)
adjustment (Black
text and black line
reproduction
adjustment)
B BLACK TEXT Black image edge
(INTERCEPT) section density
(overall level)
adjustment (Black
text and black line
reproduction
adjustment)
46 -28
Purpose Adjustment
Function Used to check pre-scanning operation for automatic
(Purpose) recognition of document in the color auto copy
mode. (This simulation is used only in production,
and not used in the market.)
Section Image process (ICU)
Item Picture quality
Operation/ 1. Select the item to be set with the scroll key.
Procedure 2. Enter the set value of the selected item with the
10-key and press the [OK] key. (The scan area is
set.)
3. Press the [EXECUTE] key to scan the area corresponding to
the set scan area. Then the scan information is displayed.
Press [SETUP] key to return to the initial display. (Set content
display)
Though the above set value is changed, the document auto
recognition is not affected in an actual color auto copy mode.
(Items to be set)
A ORIGINAL
B ORIGINAL SUB
Color balance
46
Purpose
Function
Min. Max.
Default
(Purpose)
Value Value
Section
1 99 50
Item
Operation/
Procedure
1 99 50
A
B
C
D
A: Area separation, detection of text on dots
Input value
B: Color auto document recognition filter setting
Input value
C: Filter setup in 1bit Text/Photography mode
Input value
D: Filter setup in 1bit Photography mode
Color balance
Input value
AR-BC260 SIMULATION 9 - 52
Display Content
Main scanning
MAIN SIZE document size
(mm) (mm)
Sub scanning
SIZE (mm) document size
-35
Setting
Image process setting in the Color manual mode
Image process (ICU)
Picture quality
1. Select a set item with the scroll key.
2. Enter a set value, and press [OK] button.
Item
Area separation, detection of text on dots
Color auto document recognition filter
setting
Filter setup in 1bit Text/Photography
mode
Filter setup in 1bit Photography mode
Selection display text
0 OFF
1 ON
Selection display text
0 L2
1 L
2 H
Selection display text
0 OFF
1 ON
Selection display text
0 OFF
1 ON
Min. Max.
Default
Value Value
100 297 297
139 432 210
Input
Default
range
0 – 1 0
0 – 2 1
0 – 1 0
0 – 1 0
Detection of text on dots
NO
YES
Filter setting
Emphasis weak 2
Emphasis weak
Emphasis strong
Filter setting
Emphasis strong
Emphasis weak
Filter setting
Emphasis strong
Emphasis weak