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Transmission mode

Forums › TWAIN Classic › Transmission mode

  • This topic has 3 replies, 1 voice, and was last updated 1 year, 7 months ago by Lisha.
Viewing 4 posts - 1 through 4 (of 4 total)
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  • December 20, 2016 at 12:28 am #23077 Reply
    amitinfinity
    Participant
    • Topics - 1
    • Replies - 0
    • Total Posts - 1

    All,
    I am writing an application in python for a custom application with Epson v800 photo Scanner. I am interested in the transmission mode (which can be setup with twain lightpath option).
    However, the default physical dimensions in the transmission mode are 5.6 x 9.7 “. I am interested to scan full 8 x 11 ” in transmission mode for my application.
    It seem the Epson Scan software has two settings for films – (a) Film (with Film Holder) : Which is the default setting of transmission mode, and (b) Film (with Film Area Guide): which I am interested in.
    My questions is that lightpath only takes two values (0 and 1). Is there any other twain command or setting which is being used here?

    Further, I looked at the registry and it seems Epson software sets the “Document Type” registry to different values (0 –> Reflective, 1 –> Film with Film holder, and 2 –> Film with Film area guide).

    Any advice on how to set this option.

    Your help is much appreciated.
    Thanks,
    Amit

    February 1, 2018 at 2:40 pm #30814 Reply
    Pchemman
    • Topics - 95
    • Replies - 183
    • Total Posts - 278

    I am also having a similar issue. Has anyone figured out how to scan the full size area in transmission for an enabled scanner? It works really well through the Epson native software (which I thought was based on twain), but I can’t seem to find the right option tags to get it to work.

    Thanks!

    May 2, 2018 at 6:25 am #30902 Reply
    MarkM
    • Topics - 95
    • Replies - 183
    • Total Posts - 278

    Epson has a development guide here: http://www.epsondevelopers.com/twain-programming-guide-epson-scan/overview/ It’s possible the information you want is there. It’s also possible that their drivers include custom capabilities (detectable by CAP_SUPPORTEDCAPS values of 0x8000 or higher). However, if such things exist, you’ll need to contact Epson directly for information on how to use them.

    June 4, 2019 at 11:02 am #50923 Reply
    Lisha
    • Topics - 95
    • Replies - 183
    • Total Posts - 278

    I am facing the same problem. I want to get the full area scan with transmission mode. Did you already figure out how it works? I appreciate for any advises.

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