IMAGE PROCESSING
B079/B082 6-32 SM
6.5.12 FILTERING
Interactive SP Codes
Overview
The tables in this section are for quick reference. For details about how each SP
code operates and interacts with other SP settings, please refer to the sections that
follow.
Many of the SP codes used for image processing adjustments are interactive in
that they exist as master and slave SPs. Use the master SP codes for gross
adjustment. If you need to fine adjust a master setting, set the master setting to “0”
to access its slave SP codes.
NOTE: In the tables below, the master SP codes are set in bold type. The slave
SP codes are indented and set in normal type.
Keep the following points in mind while you are using these SP codes:
• The slave SP codes cannot be accessed until the master SP is set to “0”.
• For the slave SP code settings to take effect, the master SP code must remain
set to “0”.
• If the master SP code is reset to any value other than “0”, then the slave SP
codes are disabled and their adjustments have no effect on image processing.
• If a master SP code is provided with both a Strength and Level (coefficient)
adjustment, adjust the Strength setting first to achieve the approximate effect
that you want, then do the Level adjustment.
Text Mode
Adjust the image for the Text mode with the four master settings within their
allowed ranges (for ranges see Section “5. Service Tables”. To fine adjust a master
setting set it to “0” then perform the adjustments listed below.
SP4904 020 = 0 Text (General) Quality 25-64%
SP4903 020 Main Scan Filter Level: Text 25%-64%
SP4903 021 Sub Scan Filter Level: Text 25%-64%
SP4903 022 Main Scan Filter Strength: Text 25%-64%
SP4903 023 Sub Scan Filter Strength: Text 25%-64%
SP4904 021 = 0 Text (General) Quality 65-154%
SP4903 024 Main Scan Filter Level: Text 65%-154%
SP4903 025 Sub Scan Filter Level: Text 65%-154%
SP4903 026 Main Scan Filter Strength: Text 65%-154%
SP4903 027 Sub Scan Filter Strength: Text 65%-154%
SP4904 022 = 0 Text (General) Quality 155-256%
SP4903 028 Main Scan Filter Level: Text 155%-256%
SP4903 029 Sub Scan Filter Level: Text 155%-256%
SP4903 030 Main Scan Filter Strength: Text 155%-256%
SP4903 031 Sub Scan Filter Strength: Text 155%-256%
SP4904 023 = 0 Text (General) Quality 257%-400%
SP4903 032 Main Scan Filter Level: Text 257%-400%
SP4903 033 Sub Scan Filter Level: Text 257%-400%
SP4903 034 Main Scan Filter Strength: Text 257%-400%
SP4903 035 Sub Scan Filter Strength: Text 257%-400%