Setting Range Correction (Adjustment Of Background Peak) - Toshiba e-STUDIO281c Service Handbook

3.5.9 Setting range correction
The values of the background peak/text peak in the range correction at the Black Mode can be
switched to "varied" or "fixed" in the following codes.
If they are fixed, the range correction is performed with standard values.
The values of the background peak affects the reproduction of the background density, and the values
of the text peak affects that of the text density.
Original mode
Text/Photo Photo
570 571
693 694
Make a test copy and compare the image obtained with the current settings; if necessary, make adjust-
ment.
<Procedure>
Procedure is same as that of "3.5.3 Density adjustment".
3.5.10

Setting range correction (Adjustment of background peak)

The levels of the background peak for the range correction at a Black Mode can be set at the following
codes.
Original mode
Text/Photo Photo
532 533
Make a test copy and compare the image obtained with the current settings; if necessary, make adjust-
ment.
<Procedure>
Procedure is same as that of "3.5.3 Density adjustment".
e-STUDIO281c/351c/451c
ADJUSTMENT
Item to be adjusted
Text
572 Range correction for
original manually set
on the original glass
695 Range correction for
original set on the
RADF
Item to be adjusted
Text
534 Background peak for
range correction
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<Adjustment Mode (05)>
Remarks
The following are the default values set
for each original mode.
Text/Photo: 22, Photo: 12, Text: 22
Each digit stands for:
One's place: Automatic density mode
Ten's place: Manual density mode
The setting conditions possible are as
follows:
Background peak
1: fixed
2: varied
3: fixed
4: varied
<Adjustment Mode (05)>
Remarks
When the value increases, the back-
ground (low density area) of the image
is not output.
Acceptable values: 0 to 255.
(Default: Text/Photo: 40, Photo: 16,
Text: 40)
Text peak
fixed
fixed
varied
varied