Ricoh FAX2000L - Scanner Video Processing Parameters

30 November, 1999 IMAGE ADJUSTMENT
6-29
Replacement
Adjustment
6.11.4 SCANNER VIDEO PROCESSING PARAMETERS
The tables in the following pages show the video processing parameter settings for
each scanning mode.
One byte of parameters is assigned for each mode (text or halftone), and they all
have the same definitions as follows:
MTF / Edge detection / Edge enhancement
Bit No. FUNCTION COMMENTS
0-3 Not used
4
MTF
0: On 1: Off
This bit is for text mode only.
0: Enhances the thickness of thin lines and
dots, but also makes dust more obvious.
1: Thin lines may not reproduce clearly.
5
Edge enhancement
0: Off 1:On
This bit is for halftone mode only.
0: Suitable for photo originals.
1: Suitable for originals with photo and text.
The edges of text become much sharper, but
moire might appear in photo areas.
6
Edge detection
0: On 1: Off
This bit is for halftone mode only.
0: Suitable for most photo originals.
1: The image becomes lighter, and thin lines
become paler.
7 Not used Do not change the setting.
Mode Address Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Auto on 800626H 0 1 000 0 0 0Text
80062AH
0 1 000 0 0 0
Halftone
Auto off
80062EH 1000 1 1 1 1
Auto: Auto image density
NOTE:
DO NOT change bits in the shaded part of the table.