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wia adf capturing only part of page


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...


Solution

  • I had exactly this issue just with Cannon printers. HP was ok. It was solved by setting up 6151 and 6152 properties.