Toshiba e-STUDIO556 Service Manual page 441

6.6.6 Background adjustment
The adjustment level of background center value is adjusted. The control value of background
adjustment button is automatically adjusted to the same level as the adjusted center value.
For example, when the control value of background adjustment key ranges from 0 to 6, the background
center value (-2 to +2) is used to be the range from 6 to 14 accordingly.
Original mode
Color
Text/
mode
Text
Photo
Color 8309 8310
e-STUDIO657/857 only
Original mode
Color
Text/
mode
Text Photo
Photo
Black 7436 7437
<Procedure>
Procedure is same as that of  P.6-34 "6.6.2 Density adjustment".
6.6.7 Fine adjustment of black density
The density of black side on scanned image is adjusted at color-scanning.
Original mode
Text/
Text Photo
Photo
8314 8315 8316
Note:
Be careful for the value not to be too large since the gradation is reproduced worse in darker
side.
<Procedure>
Procedure is same as that of  P.6-34 "6.6.2 Density adjustment".
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User
Photo
Custom
8311 8370 Background
adjustment
Gray
User
Scale
Custom
7438 7441 7439
Item to be
User
adjusted
Custom
8371 Fine adjustment of
black density
6 - 37
< Adjustment Mode (05) >
Item to be
adjusted
<e-STUDIO656/856>
The smaller the value is, the background
becomes lighter.
Acceptable values: 0 to 50 (Default: 50).
<e-STUDIO657/857>
The smaller the value is, the background
becomes lighter.
Acceptable values: 0 to 255
(Default: 128)
Item to be
adjusted
Background The smaller the value is, the background
adjustment becomes lighter.
Acceptable values: 0 to 255
(Default: 128)
< Adjustment Mode (05) >
Remarks
The larger the value is, the black side of the
image becomes darker.
Acceptable values: 0 to 4 (Default:
Text/Photo: 1, Text / Photo / User Custom: 0).
e-STUDIO556/656/756/856/557/657/757/857
Remarks
Remarks
ADJUSTMENT
6