Ricoh B079, Service Manual

Page: 262 / 948

SERVICE PROGRAM MODE TABLES
B079/B082 5-36 SM
SP4 Mode Number Function and [Setting]
4904* 13* Gray Adj.: Photo (Edge Det.) Adjusts the setting for edge detection during
grayscale processing of originals scanned with
the Custom Setting of the Photo mode. At defined
edges error diffusion executes on text to create
sharp lines to better define text characters, but in
other areas, error diffusion executes grayscale
processing for photographs. Select a lower setting
for better reproduction of photographs and a
higher setting for sharper text.
[0~15 /
0 / 1]
0: Decreasing the setting (approaching “0”)
improves the appearance of photographs, but
can cause text and thin lines to drop out.
15: Increasing the setting (approaching “15”)
sharpens text and thin lines, but can also
cause grayscale areas to degrade.
(
!
6.2 Image Processing)
20* Text (General) Quality 25-
64%
Allows adjustment together with other SP codes
to improve image quality of originals copied in
Text Mode at magnification within 25%-64%. The
selections are stepped to allow gradual
adjustments from prioritizing reproduction of
pictures shaded with dot patterns (newspapers,
magazines, etc.) with less moiré to prioritizing low
contrast fine lines and text. Select a lower setting
to prioritize reproduction of pictures without moiré,
and select a higher setting to prioritize
reproduction of text and thin lines.
[0~13 /
0 / 1]
0: Off
1: Pictures highest priority
13: Text/thin lines highest priority
(
!
6.2 Image Processing)
21 Text (General) Quality 65-154% Allows adjustment together with other SP codes
to improve image quality of originals copied in
Text Mode at magnification within 65%-154%.
The selections are stepped to allow gradual
adjustments from prioritizing reproduction of
pictures shaded with dot patterns (newspapers,
magazines, etc.) with less moiré to prioritizing low
contrast fine lines and text. Select a lower setting
to prioritize reproduction of pictures without moiré,
and select a higher setting to prioritize
reproduction of text and thin lines.
[0~13 /
0 / 1]
0: Off
1: Pictures highest priority
13: Text/thin lines highest priority
(
!
6.2 Image Processing)