SERVICE PROGRAM MODE TABLES
B079/B082 5-34 SM
SP4 Mode Number Function and [Setting]
4904* 5* Special Text Density Enter the appropriate number with the 10-key pad
then press . This SP code adjusts the density of
the image to eliminate vertical black lines in
originals that were caused by previous scanning
with a dirty optics.
While selecting a higher setting to erase more
lines, selecting a very high setting can cause low
contrast areas to become faint or cause them to
drop out.
[0~7 / 0 / 1]
0: Off
1: Weaker
7: Stronger
(
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6.2 Image Processing)
7*
Error Diffusion Pattern Adjusts the threshold level for error diffusion
processing in the Text/Photo mode. The effect of
error diffusion can vary, depending on the image
of the original. Adjust this setting if the results of
the texture in copies is not what you expect,
especially before starting a large copy job.
[0~3 / 0 / 1 step]
0: Edge threshold pattern is used.
1: Texture Pattern (matrix) 0 is used
2: Texture Pattern (matrix) 1 used.
3: Texture Pattern 2 (matrix) used.
8*
Gray Adj: Text/Photo (Edge
Det.) 25-64%
Adjusts the degree of edge detection to improve
image quality originals scanned in the Text/Photo
Mode in a range of magnification of 25% to 64%.
The method of error diffusion is determined how
the edges are detected. 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 / 8 / 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)
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