e-STUDIO2040C/2540C/3040C/3540C/4540C © 2011 TOSHIBA TEC CORPORATION All rights reserved
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2. Copier-specific Adjustments
(4) Enter the adjustment mode [05] and adjust the gamma balance in each of medium- and high-density areas.
Original mode [05] code Subcode
Recommende
d value
Acceptable
value range
Default
Text/Photo 05-7190
Text 05-7191
Photo 05-7192
Auto color (when
judged as black)
Text/Photo
05-7957
Auto color (when
judged as black)
Text
05-7958
Auto color (when
judged as black)
Photo
05-7959
1/2
Set a value larger
than 128.
0 to 255 128
Subcode
Area where the density
is adjusted
1 Medium-density area
2 High-density area
* Set the value in increments of approximately 20, while checking the copy image until the optimum value is
obtained. Note that gradations (density level) in the medium- and high-density areas may be reversed with
some setting values.
* Subcodes to be entered differ depending on the target density area. Refer to the table above to enter the
subcode for the area to be adjusted. The density of thin text or illustrations is changed by adjusting mainly
the setting value for the medium- or high-density area. Do not change the setting value for the low-density
area because if the subcode is set at “0”, the density of the low-density area is adjusted but there is little or
no effect on changing the density of thin text or illustrations.
After setting the value, copy and check the image quality.
Precautions after the completion of the adjustment
The adjustment may possibly cause an increase in the amount of toner used, moiré, blurred text (small, dark text
blurred), diminished photo images or gradational images (less accurate reproducibility of halftones). Therefore,
carefully perform the adjustment, while checking the copy image.
Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss in
MFP performance, including degradation in the image quality and a reduction in the life of the consumables.
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