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Kofax VRS driver issue

Forums › TWAIN Classic › Kofax VRS driver issue

  • This topic has 1 reply, 2 voices, and was last updated 13 years, 11 months ago by HOHXP.
Viewing 2 posts - 1 through 2 (of 2 total)
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  • April 14, 2006 at 12:00 am #21910 Reply
    mrgcjr
    Participant
    • Topics - 1
    • Replies - 0
    • Total Posts - 1

    I have a customer using a Bell & Howell Spectrum XF8140DC with a Twain VRS driver. From debug logs I can see that scanning slows down during a session with each call to DG_IMAGE / DAT_IMAGENATIVEXFER / MSG_GET. It starts out very quick and becomes quite slow after 100 pages or so.

    I’ve also noticed that every other call to DG_CONTROL / DAT_PENDINGXFERS / MSG_ENDXFER takes 0.6 to 0.8 seconds to return. If there are no more pages in the feeder it takes 2 to 10 seconds to return.

    Has anyone else experienced slow down issues with VRS drivers? Any feedback and/or suggestions are appreciated.

    February 6, 2007 at 11:10 am #23308 Reply
    HOHXP
    Participant
    • Topics - 2
    • Replies - 34
    • Total Posts - 36

    Skip the hole VRS. I would guess the problem is speed of transfer, a lot of data is coming and flow (inlcuding driver and scanner memory cache) is getting full. Use programs that could scan in jpeg and it would keep up with max speed of the scanner. Then the program would process the pages afterwards (blank page removal, deskew, color reducion etc). Bet on the market is the program PixEdit from Techsoft

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Reply To: Kofax VRS driver issue
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