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BACKEND TECO1
Relisys RELI 2412 (no ADF, no transparency adapter)
single pass scanner - 300*1200 dpi - 8.5*14
Inquiry:
000: 06 00 02 02 30 00 00 10 52 45 4c 49 53 59 53 20 ....0...RELISYS
016: 56 4d 33 35 33 30 2b 20 20 20 20 20 20 20 20 20 VM3530+
032: 31 2e 30 38 31 2e 30 38 02 00 54 45 43 4f 20 56 1.081.08..TECO V
048: 4d 33 35 33 41 M353A
Inquiry page 0x82
000: 06 82 00 12 11 54 45 43 4f 20 56 4d 33 35 33 41 .....TECO VM353A
016: 20 56 31 2e 30 36 V1.06
AVEC Colour 2412
three pass scanner - 300*600 dpi - 8.5*14
000: 06 00 02 02 30 00 00 10 20 20 20 20 20 20 20 20 ....0...
016: 49 6d 61 67 65 20 53 63 61 6e 6e 65 72 20 20 20 Image Scanner
032: 31 2e 30 38 31 2e 30 38 02 00 54 45 43 4f 20 56 1.081.08..TECO V
048: 4d 33 35 32 41 M352A
Avec Color Office 2400 (no ADF, no transparency adapter)
three pass scanner - 300*600 dpi - 8.5*14
Inquiry:
000: 06 00 02 02 30 00 00 10 20 20 20 20 20 20 20 20 ....0...
016: 49 6d 61 67 65 20 53 63 61 6e 6e 65 72 20 20 20 Image Scanner
032: 32 2e 30 34 32 2e 30 34 02 00 54 45 43 4f 20 56 2.042.04..TECO V
048: 4d 33 35 32 30 M3520
Inquiry page 0x82
000: 06 82 00 12 11 54 45 43 4f 20 56 4d 33 35 32 30 .....TECO VM3520
016: 20 56 32 2e 30 34 V2.04
RELI 4830 (no ADF, with transparency adapter)
000: 06 00 02 02 30 00 00 10 52 45 4c 49 53 59 53 20 ....0...RELISYS
016: 52 45 4c 49 20 34 38 33 30 20 20 20 20 20 20 20 RELI 4830
032: 31 2e 30 33 31 2e 30 33 02 00 54 45 43 4f 20 56 1.031.03..TECO V
048: 4d 34 35 34 32 M4542
Inquiry page 0x82
000: 06 82 00 12 11 54 45 43 4f 20 56 4d 34 35 34 32 .....TECO VM4542
016: 20 56 31 2e 30 33 V1.03
Dextra DF-600P - VM3510
000: 06 00 02 02 24 00 00 10 44 46 2D 36 30 30 4D 20 ....$...DF-600M
016: 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20
032: 31 2E 31 37 31 2E 31 37 02 1.171.17.
/*--------------------------------------------------------------------------*/
SCSI commands supported by the RELISYS VM3530+:
TEST UNIT READY
00 00 00 00 00 00
REQ SENSE
03 00 00 00 12 00
VENDOR-09
09 00 00 78 00 00
3-4 = length of data to receive. Always 30720 bytes.
Probably 12 lines of calibration at 300dpi.
8.5*300*12=30600
VENDOR-0E (?)
0E 00 00 00 00 00
Always follows VENDOR-09 command
INQUIRY:
12 00 00 00 35 00
12 01 82 00 21 00
standard inquiry
52 bytes - appears to never change
32-39: firmware version
42-52: real scanner name
page 0x82 (vendor specific) - real scanner name with version
0-3 = page header
4 = string length
5-21 = real scanner name with version
MODE SELECT
15 10 00 00 18 00
always sends:
00 00 00 00 00 00 00 08 00 00 00 00 00 00 00 01
03 06 02 00 00 01 00 00
SCAN
1B 00 00 00 00 00
SET WINDOW
24 00 00 00 00 00 00 00 63 00
Total length is 99
07 = length (99-8 = 91)
10-11 = X Resolution
12-13 = Y resolution
14-17 = X top left corner
18-21 = Y top left corner
22-25 = width (size in inches * 300)
26-29 = length (size in inches * 300)
31 = 0x80 ?
33 = scan mode
0x00 = black & white
0x02 = grayscale
0x05 = color
34 = bit depth? - invariants, always 8
36 = dither pattern - only for B&W
0x00 = line art
0x01 = 2 X 2
0x02 = 3 X 3
0x03 = 4 X 4 Bayer
0x04 = 4 X 4 Smooth
0x05 = 8 X 8 Bayer
0x06 = 8 X 8 Smooth
0x07 = 8 X 8 Horizontal
0x08 = 8 X 8 Vertical
37 =
0x80 = RIF (VM353A only?)
63 = calibration?
0x00 yes
0x02 no
81 = ??? transparency adapter
0x00 no
0x01 yes
93 =
0x80 = ? (seems to activate a contrast value on VM353A)
37, 55, 57, 59, 61, 65, 67, 69, 71, 73, 75, 77, 79 = 0x80
85, 89, 93, 97 = 0xff
READ
28 00 00 00 00 00 00 00 3E 00
6-8 = length
SEND
2A 00 03 00 00 02 00 04 00 00
2 = data type code
0x03 = gamma - 4*256 bytes
GET DATA BUFFER STATUS
34 01 00 00 00 00 00 00 12 00
1 = bit 1 is wait
7-8 allocation length
returned buffer is 0x10 bytes long.
0-2 = additional length (0x10-3 = 0x0D)
3 = reserved(?)
8 = ?
9-11 = filled data buffer
12-13 = number of lines (constant during a scan)
14-15 = bytes per line (constant during a scan)
/*--------------------------------------------------------------------------*/
Command sequence
(simplified, since the TWAIN driver seems to be quite stupid)
Get some info:
INQUIRY
INQUIRY page 0x82
Setup the scan:
TUR
MODE SELECT
SET WINDOWS
GET BUFFER STATUS
VENDOR-09
VENDOR-0E
SEND(10)
SET WINDOWS (same as the first one)
SCAN
loop until all data read:
GET BUFFER STATUS
READ(10) if any data available
park the CCD:
SET WINDOWS
SCAN
/*--------------------------------------------------------------------------*/
The vendor specific command 0x09 and 0x0e are issued by the windows driver to the AVEC 2400, but the scanner rejects them.
/*--------------------------------------------------------------------------*/
The Dextra DF600-P is a VM3510. It's older than the other scanner and
is a little more primitive. The driver recognizes its scsi id and fake
a more evolved one. The scan sequence is also simplified. The rest is
identical.
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