Ricoh D131 Service Manual page 643

SP4000 Scanner
8 Contrast: 1-255
Set higher for more contrast, set lower for less contrast.
[1 to 255/128/1]
9 Ind Dot Erase: 0(Off) 1-7 (Weak – Strong)
This SP sets the level for removing dots when a color original is scanned with a
scanner software application. The higher the setting, the greater the effect
applied for removing background dots.
[0 to 7/0/1]
4580 FAX Application: Text/Chart
4581 FAX Application: Text
4582 FAX Application: Text/Photo
4583 FAX Application: Photo
4584 FAX Application: Original 1
4585 FAX Application: Original 2
5 MTF: 0(Off) 1-15 (Weak – Strong)
Sets the MTF level (Modulation Transfer Function) designed to improve image
contrast. Set higher for stronger effect, lower for weaker effect.
[0 to 15/8/1]
6 Smoothing: 0(x1) 1 – 7 (Weak – Strong)
Use to remove "jaggies" if they appear. Set higher for smoother.
[0 to 7/4/1]
7 Brightness: 1-255
Set higher for darker, set lower for lighter.
[1 to 255/128/1]
8 Contrast: 1-255
Set higher for more contrast, set lower for less contrast.
[1 to 255/128/1]
D131/D132/D133 3-68 SM Appendix