(d)Brightness: Byte 16
Specifies the brightness for half tone. For details, see the SET WINDOW command.
(e)Threshold: Byte 17
Specifies the threshold value for line art. For details, see the SET WINDOW command.
(f)Contrast: Byte 18
Specifics the contrast value for half tone or line art. For details, see the SET WINDOW command.
(g)Image composition: Byte 19
Specifies the type of image to be read. The following values are supported by this scanner:
X©00 : Line art
X©01 : Half tone
If a value X©02 or greater is specified, this scanner returns the following error information:
f Status: | B©00001 (CHECK CONDITION) |
f Sense key: X©5 (ILLEGAL REQUEST)
(h)Bit per pixel: Byte 1A
Specifies the number of bits per pixel. On this scanner, X©01 (1 bit) is specified since only binary data is valid for subwindows. If any other value is specified, this scanner returns the following error information:
f Status: | B©00001 (CHECK CONDITION) |
f Sense key: X©5 (ILLEGAL REQUEST)
(i)Half tone pattern: Byte 1B and 1C
Specify the halftone method and dithered pattern. For details, see the SET WINDOW command.
(j)RIF (reverse image format): Byte 1D
This bit is used to reverse the binary image data output.
0:Output is not reversed
1:Output is reversed
4 $ 61