Ricoh D131 Service Manual page 641

SP4000 Scanner
20 Scanned + Grid Pattern
21 Scanned + Gray Scale
22 Scanned + Color Patch
23 Scanned + Slant Grid C
24 Scanned + Slant Grid D
25 Gray Scale 18 Text
26 Gray Scale 18 Photo
27 Gray Scale 256 Text
28 Gray Scale 256 Photo
4429 Select Copy Data Security
Copying
1
[0 to 3/ 3 / 1]
Scanning
2
[0 to 3/ 3 / 1]
Fax Operation
3
[0 to 3/ 3 / 1]
Scan Image Pass Selection
4450
This SP controls black subtraction and shading correction in scanned images.
1 Black Subtraction ON/OFF
Determines whether black subtraction is done.
[0 to 1/1/1] 0: Black subraction OFF 1: Black subtraction ON
2 SH ON/OFF
Determines whether shading correction is done.
[0 to 1/1/1] 0: Shading correction OFF 1: Shading correction ON
D131/D132/D133 3-66 SM Appendix