Ricoh D124-17 Service Manual page 823

8 Contrast: 1-255
Sets the overall contrast of images scanned in the Text mode (copying).
[1 to 255/128/1]
1 (Weakest), 128 (Medium: Default), 255 (Strongest)
Note: Raising the contrast level may increase moiré
9 Ind Dot Erase: 0(Off) 1-7 (Weak-Strong)
Sets the level of independent dot erasure to improve the appearance in the backgrounds
of images scanned in the Text mode (copying).
[0 to 7/0/1]
0: Default (Off) 1 (Weakest) to 7 (Strongest)
4553 Scan Apli:Txt Dropout DFU
This SP forces background lines (of section paper, for example) to drop out and not
appear in the images. (Forcing blue to drop out may be difficult.) These SP codes
enhance the quality of orginals scanned in this mode.
5 MTF: 0(Off) 1-15 (Weak-Strong)
Sets the MTF coefficient scanned in the Background Lines mode. When the original
image is converted 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 CIS properties. This
may cause very narrow bands or spacing between black and white areas. Use the MTF
adjust to correct this problem and emphasize image detail.
[0 to 15/8/1]
0 (Weakest), 8 (Medium: Default), 15 (Strongest)
6 Smoothing: 0(x1) 1-7 (Weak-Strong)
Sets the level of smoothing for originals scanned in the Background Lines mode.
[0 to 7/4/1]
0 (Weakest), 4 (Medium: Default), 7 (Strongest)
7 Brightness: 1-255
Sets the overall brightness images scanned in the Background Lines mode.
[1 to 255/128/1]
1 (Weakest), 128 (Medium: Default), 255 (Strongest)
Note: Raising the brightness level may increase moiré
SP4000
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