26 January, 2001 SERVICE PROGRAM MODE
5-19
Service
Tables
SP4 Mode Number Function and [Setting]
4903* 10* Pre-Filter: Text 25%~64% Selects the Pre-Filter coefficient in the main
scan direction for text mode. Pre-filter
emphasizes lines parallel to the direction of
feed. (☛ Chap.6, “Image Processing”.
[0~3 / 0 / 1 step]
Increasing this value strengthens smoothing but
can also increase the occurrence of moiré and
reduce sharpness.
11* Pre-Filter: Text 65%~154% Selects the Pre-Filter coefficient in the main
scan direction for text mode. Pre-filter
emphasizes lines parallel to the direction of
feed. (☛ Chap.6, “Image Processing”.
[0~3 / 0 / 1 step]
Increasing this value strengthens smoothing but
can also increase the occurrence of moiré and
reduce sharpness.
12* Pre-Filter: Photo Selects the Pre-Filter coefficient in the main
scan direction for photo mode. (☛ Chap.6,
“Image Processing”.
[0~3 / 0 / 1 step]
13* Pre-Filter: Text/Photo
25%~64%
Selects the Pre-Filter coefficient in the main
scan direction for text/photo mode (25%~64%)
emphasizes lines parallel to the direction of
feed. (☛ Chap.6, “Image Processing”.
[0~3 / 1 / 1 step]
Increasing this value strengthens smoothing but
can also increase the occurrence of moiré and
reduce sharpness.
14* Pre-Filter: Text/Photo
65%~154%
Selects the Pre-Filter coefficient in the main
scan direction for text/photo mode (65%~154%)
and emphasizes lines parallel to the direction of
feed. (☛ Chap.6, “Image Processing”.
[0~3 / 0 / 1 step]
Increasing this value strengthens smoothing but
can also increase the occurrence of moiré and
reduce sharpness.
15* Pre-Filter: Light
Selects the Pre-Filter coefficient in the main
scan direction for low density mode and
enhances lines parallel to the direction of feed.
(☛ Chap.6, “Image Processing”.
[0~3 / 0 / 1 step]
Increasing this value strengthens smoothing but
can also increase the occurrence of moiré and
reduce sharpness.
16* Pre-Filter: Generation Selects the Pre-Filter coefficient in the main
scan direction for copied original mode
emphasizes lines parallel to the direction of
feed. (☛ Chap.6, “Image Processing”.
[0~3 / 0 / 1 step]
Increasing this value strengthens smoothing but
can also increase the occurrence of moiré and
reduce sharpness.
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