I have an interesting issue by one of my clients.
When scanning with WIA using the ADF, I get only a small part of each page as the image, about 2 by 4 inches. Instead of 8.5 by 11.
The same code on my pc/scanner works just fine. Also by this client it works fine on the flatbed. The issue crops (pun intended) up only with the ADF.
I haven't the foggiest idea where to start looking.
I'm posting here an iteration of the WIA Item properties i can get in code:.
0:Access Rights=3
1:Bits Per Channel=1
2:Bits Per Pixel=1
3:Brightness=0
4:Buffer Size=65535
5:Bytes Per Line=108
6:Channels Per Pixel=1
7:Color Profile Name=sRGB Color Space Profile.icm
8:Compression=0
9:Contrast=0
10:Current Intent=0
11:Data Type=0
12:Filename extension=BMP
13:Format={B96B3CAB-0728-11D3-9D7B-0000F81EF32E}
14:Full Item Name=0001\Root\Scan
15:Horizontal Extent=850
16:Horizontal Resolution=300
17:Horizontal Start Position=0
18:Item Flags=532483
19:Item Name=Scan
20:Item Size=0
21:Media Type=2
22:Number of Lines=1400
23:Orientation=0
24:Photometric Interpretation=0
25:Pixels Per Line=850
26:Planar=0
27:Preferred Format={B96B3CAB-0728-11D3-9D7B-0000F81EF32E}
28:Rotation=0
29:Threshold=128
30:Vertical Extent=1400
31:Vertical Resolution=300
32:Vertical Start Position=0
And these are the properties for the WIA Device:
0:BaudRate=
1:Description=Canon D1300/MF6700
2:DeviceKey=D1300
3:Document Handling Capabilities=39
4:Document Handling Select=1
5:Document Handling Status=34
6:Driver Version=3.0.0.0
7:Firmware Version=1.00
8:Full Item Name=0001\Root
9:Hardware Configuration=0
10:Horizontal Bed Size=8500
11:Horizontal Optical Resolution=300
12:Horizontal Sheet Feed Size=8500
13:Item Category={F193526F-59B8-4A26-9888-E16E4F97CE10}
14:Item Flags=76
15:Item Name=Root
16:Manufacturer=Canon
17:Max Scan Time=3600000
18:Minimum Horizontal Sheet Feed Size=10
19:Minimum Vertical Sheet Feed Size=10
20:Name=Canon D1300/MF6700 (Network: 180CACDB1143)
21:Page Height=14000
22:Page Size=2
23:Page Width=8500
24:Pages=1
25:PnP ID String=\?\root#canon_mf_network#0000#{6bdd1fc6-810f-11d0-bec7-08002be2092f}
26:Port=CNMFNPSCAN_180CACDB1143
27:Preview=0
28:Remote Device ID=
29:Server=local
30:Sheet Feeder Registration=1
31:Show preview control=1
32:STI Driver Version=3
33:STI Generic Capabilities=17
34:Type=65537
35:UI Class ID={E2DCAEBD-D51C-413d-86A5-685670AA9C04}
36:Unique Device ID={6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\0001
37:User Name=ABC-PC\ABC
38:Vertical Bed Size=14000
39:Vertical Optical Resolution=300
40:Vertical Sheet Feed Size=14000
41:WIA Version=2.0
If it helps any, then the possible list of DPI resolution does not seem to work correctly either. I get the subtype as a RangeSubType with the following properties
Min:50,Max:600,Step:1
Which I believe is incorrect...
I had exactly this issue just with Cannon printers. HP was ok. It was solved by setting up 6151 and 6152 properties.