Judgment Threshold For Acs (Common For Copy And Network Scan) - Toshiba e-STUDIO2820C Service Handbook

3.4.4 Judgment threshold for ACS (common for copy and network
scan)
The judgment level is adjusted for the automatic identification of whether the original set on the glass is
black or color. Namely, this is to adjust the judgment level used when "Auto Color" is selected at color
modes. The same adjustment value is simultaneously applied to all cases of originals on the original
glass for copier functions and network scanning functions, and those placed on the RADF.
Code Item to be adjusted
1675 Judgment threshold
for ACS
<Procedure>:
The procedure is the same as that of
3.4.5 Sharpness adjustment
If you want to make scan images look softer or sharper, perform the following adjustment. The adjust-
ment can be made for each of the color modes and original modes independently.
Code Color mode
1086 Full Color
1087
1088
8375
840 Black
841
842
7470
843 Gray Scale
Note:
You have to make adjustment by balancing between moire and sharpness.
<Procedure>
The procedure is the same as that of
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The larger the value is, the more an original tends to be judged as black even
at the Auto Color Mode. The smaller the value is, the more it tends to be
judged as color.
Acceptable values: 0 to 255 (Default: 70)
P.3-57 "3.4.2 Density adjustment".
Original mode
Text • The larger the value is, the sharper the image becomes;
while the smaller the value is, the softer the image becomes.
Printed Image
• The smaller the value is, the less moire tends to appear.
Photo • The acceptable values are 0 to 255.
The center value is 128.
User custom
Text/Photo
Text
Photo
User custom
-
P.3-57 "3.4.2 Density adjustment".
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<Adjustment Mode (05)>
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<Adjustment Mode (05)>
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e-STUDIO2820C/2830C/3520C/3530C/4520C
3
ADJUSTMENT