Sharp AR-BC260 Service Manual page 189

(Items to be set)
Display
A POINT1
↓
↓
O POINT15
46 -23
Purpose Setting
Function Used to set Enable/Disable of half-tone high-density
(Purpose) correction.
Item Picture quality
Operation/ [ENABLE]: Correction is enabled.
Procedure [DISABLE]: Correction is disabled.
Default set: DISABLE
When tone gap occurs in the high density area in the photo copy
mode, set this function to ENABLE, and the max. density level will
fall, reducing tone gap.
46 -24
Purpose Adjustment
Function Used to adjust the copy color balance automatically.
(Purpose) (All color copy mode gamma/density adjustment)
Item Picture quality
Operation/ 1. Press the [EXECUTE] key. (A3 or 11 x 17 paper
Procedure is automatically selected.) The color patch image
(adjustment pattern) is printed.
2. Set the color patch image printed in procedure 1 on the
document table.
3. Press the FACTORY key on the operation panel, and press the
[EXECUTE] key.
The copy color balance adjustment (step 1) is automatically
performed and the color balance check patch image is printed.
4. Press the REPEAT key on the operation panel.
5. Press the [EXECUTE] key.
The color patch image (adjustment pattern) is printed.
6. Set the color patch image (adjustment pattern) printed in
procedure 5 on the document table. (Place the darker patch on
the left side.)
7. Press the FACTORY key on the operation panel, and press the
[EXECUTE] key.
The copy color balance adjustment (step 2) is automatically
performed and the color balance check patch image is printed.
8. Press the [OK] key on the operation panel.
The initial setting of the half-tone image correction is performed
according to this adjustment data.
Min. Max.
Default
Value Value
245 755 500
↓ ↓ ↓
245 755 500
Color balance
Color balance
AR-BC260 SIMULATION 9 - 51
46 -25
Purpose Adjustment
Function Used to adjust copy color balance (Single color
(Purpose) mode)
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 point 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.)
(Items to be set)
Min.
Display
Value
A RED 0
B GREEN 0
C BLUE 0
D YELLOW 0
E MAGENTA 0
F CYAN 0
46 -26
Purpose Adjustment
Function Used to set the copy color balance adjustment to the
(Purpose) default. (Single color copy mode)
Section Image process (ICU)
Item Picture quality
Operation/ 1. Press the [EXECUTE] key. (YES/NO keys are
Procedure displayed.)
2. Press the [YES] key, and the copy color balance is set to the
default. (Press the [NO] key to cancel.)
(Standard value reset items)
1. RED setup ratio
2. GREEN setup ratio
3. BLUE setup ratio
4. YELLOW setup ratio
5. MAGENTA setup ratio
6. CYAN setup ratio
Color balance
Max. Default
Value C M Y
255 0 255 255
255 255 0 255
255 255 255 0
255 0 0 255
255 0 255 0
255 255 0 0
Color balance