Ricoh Aficio FX10, Service Manual

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6.11.4. Scanner Video Processing Parameters
The tables in the following pages show the following video processing pa-
rameter settings for each of scanning mode.
One byte of parameter is assigned for each mode, and they all have the
same definitions as follows.
MTF / Edge detection / Edge enhancement
Bit No. FUNCTION COMMENTS
0 Not used
1 Not used
2 Not used
3 Not used
4
MTF
0: On 1: Off In halftone mode, the MTF process is disabled.
0: The thickness of thin lines and dots are
enhanced, but small letters might become filled
in.
1: Thin lines may not be reproduced clearly.
5
Edge enhancement during
the halftone process
0: Off 1: On 0: Suitable for photo originals (default setting).
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 during the
halftone process
0: Off 1: On This bit can be used in halftone mode only.
0: The image becomes lighter, and thin lines
become paler.
1: Suitable for most photo originals.
7 Not used
Copy Mode Parameters
Mode Address bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
W/O
HALF
TONE
AID
ON
BOOK
Full Size 800523H 0 1 0 0 0 0 0 0
Enlargement 800527H 0 1 0 0 0 0 0 0
ADF
Full Size 80052BH 0 1 0 1 0 0 0 0
Enlargement 80052FH 0 1 0 1 0 0 0 0
AID
OFF
BOOK
Full Size 800533H 0 1 0 0 1 0 0 0
Enlargement 800537H 0 1 0 0 1 0 0 0
ADF
Full Size 80053BH 0 1 0 1 1 0 0 0
Enlargement 80053FH 0 1 0 1 1 0 0 0
HALF
TONE
BOOK
Full Size 800543H 1 0 0 0 1 1 1 1
Enlargement 800547H 1 0 0 0 1 1 1 1
ADF
Full Size 80054BH 1 0 0 1 1 1 1 1
Enlargement 80054FH 1 0 0 1 1 1 1 1
Notes
Bits in the shaded part of the table must not be changed.
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June 10th, 1997 REPLACEMENT AND ADJUSTMENT
IMAGE ADJUSTMENT
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