Ricoh OR-C1 Field Service Manual page 522

4. Appendix: Service Program Mode Tables
6 Smoothing
7 Brightness
8 Contrast
4
9 Ind. Dot Erase
4580* Fax Apli:Txt/Chart
4581* Fax Apli:Txt
4582* Fax Apli:Txt/Photo
4583* Fax Apli:Photo
4584* Fax Apli:Original 1
4585* Fax Apli:Original 2
MTF: 0(Off) 1-15 (Weak-Strong)
[0 to 15 / 8 / 1 /step]
0: MTF Off
5
When the CCD converts the original image to electrical signals, the contrast is reduced
due to the influence that adjacent white and black pixels have on one another as a
result of lens properties. Typically, you will see very narrow width and spacing
between black and white areas. MTF corrects this problem and emphasizes image
detail.
164
Selects the level of smoothing for originals that contain dithered
images.
[0 to 7 / 4 / 1 / step]
0: Default (Off) 7: Strongest
Sets the overall brightness of the image.
[1 to 255/ 128 / 1 / step]
1: Weakest 128: Default
Sets the overall contrast of the image.
[1 to 255/ 128 / 1 / step]
1: Weakest 128: Default
Sets the level of independent dot erasure to improve the appearance
of background.
[0 to 7/ 0 / 1 / step]
0: Default (Off) 7: Strongest
255: Strongest
255: Strongest