Ricoh D124-17 Service Manual page 824

2. Appendix 2: Service Program Mode
8 Contrast: 1-255
Sets the overall contrast of images scanned in the Background Lines mode.
[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 Background Lines mode.
[0 to 7/0/1]
0: Default (Off) 1 (Weakest) to 7 (Strongest)
4554 Scan Apli:Txt･Photo DFU
These SP codes enhance the quality of originals scanned in the Text/Photo mode
(selected on the operation panel).
5 MTF: 0(Off) 1-15 (Weak-Strong)
Sets the MTF coefficient scanned in the Text/Photo 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 Text/Photo 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 Text/Photo mode.
[1 to 255/128/1]
1 (Weakest), 128 (Medium: Default), 255 (Strongest)
Note: Raising the brightness level may increase moiré
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