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Setting a resoltion of 1200dpi on an Epson V550 Scanner

Forums › TWAIN Classic › Setting a resoltion of 1200dpi on an Epson V550 Scanner

  • This topic has 2 replies, 3 voices, and was last updated 6 years, 4 months ago by Kaij.
Viewing 3 posts - 1 through 3 (of 3 total)
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  • October 2, 2014 at 3:43 am #22978 Reply
    ijourneaux
    Participant
    • Topics - 1
    • Replies - 0
    • Total Posts - 1

    I am trying to create a small app to control a V550 scanner. When I do a get capability on resolution, I get a list back with 1134 entries that goes from 50 to 1184.

    Since I am trying to set a scanning resolution of 1200, the call fails as 1200 is not in the list. This scanner is certainly capable ot 1200dpi as well as other higher resolutions.

    How do I get to set those higher resolutios that are not in the list that comes back form the get call?

    I have confirmed this behavior with TwainDotNet, SaraffTwain and NTwain.

    Any help would be greatly appreciated.

    November 20, 2014 at 8:43 pm #26207 Reply
    MarkM
    Participant
    • Topics - 1
    • Replies - 135
    • Total Posts - 136

    You would have to ask the scanner vendor that question. It could be a bug in their driver, or perhaps the resolution setting is dependent on some other setting, such as DAT_IMAGELAYOUT (ex: with a smaller frame, the resolution might go higher)…

    December 10, 2014 at 4:38 pm #26208 Reply
    Kaij
    Participant
    • Topics - 9
    • Replies - 132
    • Total Posts - 141

    Have you tried MSG_SET TW_ONEVALUE on ICAP_XRESOLUTION and ICAP_YRESOLUTION with the value of 1200 instead working with the list of values?

    Best regards,
    kaij
    http://www.jse.de

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Viewing 3 posts - 1 through 3 (of 3 total)
Reply To: Setting a resoltion of 1200dpi on an Epson V550 Scanner
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