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4.4.7.5 Color Scanning Vender unique parameters
Table 4-19 Vendor unique parameters (byte 28 and later)
7 6 5 4 3 2 1 0
Vender unique identification code
Parameter length
ADF source Color Reserved
Highlight value
Shadow value
Reserved
Reserved
4.4.7.5.1 Vendor unique identification code: Byte 28
Specifies a vendor unique identification code. For color image scanning, X'FF' must be specified. If other
value is specified, this scanner returns the following error:
Status: B'00001' (CHECK CONDITION)
Sense key: X'5' (ILLEGAL REQUEST)
4.4.7.5.2 Parameter length: Byte 29
Specifies parameter length for color scan.
4.4.7.5.3 Color scanning parameters
a) ADF: Byte 2A, Bit 7
0: Flatbed scan mode
1: ADF scan mode
b) Source: Byte 2A, Bit 6
0: The initiator could read the line width and line count of the current scan page by using "READ"
command. When the bits is specified X'00', the data field of Line width (X'2D' to X'2E') and Line
count (X'2F') to X'30') will be ignored by the scanner.
1: The initiator can tell the scanner the line width and the line count for the current page. The
information should be placed in Line width (X'2D' to X'2E') and Line count (X'2E' to X'30').
c) Color: Byte 2A, Bit 5 to 3
Specifies a color pass.
000: Green channel
001: Red channel
010: Green channel
011: Blue channel
100: R-G-B color image
28
29
2A
2B
2C
2D
2E
2F
30
31
32
Line width
Line count