Toshiba e-STUDIO 2500c Manual page 63

(b) Enter adjustment mode [05]. Increase the values for codes [532/534] to adjust the background peak of
range correction and lighten the copy image.
(Increase the number of pixels to be identified as "white" by range correction.)
• The code to use varies according to the original mode (Text/Photo or Text). Adjust the value for [05]
code corresponding to the condition for which you would like to improve the image quality and
increase the current value by 10 to 30.
Original mode
Text/Photo
Text
After adjusting the background peak, copy and check the copy image quality.
If further image quality adjustments are still necessary, use the next procedure.
(5) Enter adjustment mode [05]. Change the values for codes [590/591] to adjust the gamma curve balance of
the low- and medium-density areas.
Original
[05] code Subcode
mode
Text/Photo 05-590
Text 05-591
* Set the value in increments of approximately 20, while checking the copy image until the optimum value is
obtained.
* Since the subcode varies according to the area where the density is adjusted, refer to the table below and
set the appropriate subcode. Remember that mainly adjusting the low- or medium-density area will change
the copy density of the images seen through the back of the page. Setting "2" for the subcode will allow
you to adjust the high-density area. But this will not solve the problem. Therefore, never change the value
for the high-density area.
Subcode
0
1
Precautions after the completion of the adjustment
The adjustment may possibly cause text handwritten with a pencil or light text to become illegible on the copy.
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.
[05] code Recommended value
05-532 Current value + 10 or more
05-534 Current value + 10 or more
Recommended value
0/1
Set a value smaller than 128.
0/1
Area where the density is adjusted
Low-density area
Medium-density area
2. Copier-specific Adjustments
Acceptable
Default
value range
40
0 to 255
40
Acceptable
Default
value range
0 to 255 128
e-STUDIO2500c/3500c/3510c
2.7