[sane-devel] scan problem with the Mustek A3 USB

[m. allan noah]

Your mail gets thru just fine now. Unfortunately, the gt68xx backend
is unmaintained, so unless you've got some C skills or can interest or
pay a developer, you might be out of luck.

allan

On Thu, Dec 11, 2008 at 11:25 AM,  <mustek at ariplex.com> wrote:
> Hi, I am new to the list. Why does my email not come through to the list?
>
> Do you know who I could ask concerning my scan problem with the Mustek A3
> USB??
>
> Thank you,
>
> Aribert Deckers
>
>
> ------------------------------------
>
> Hello,
>
> I have a problem with a Mustek A3 USB for scanning xray film:
>
> Using SANE for scanning the transparency lid for scanning xrays is sending
> light into the scanner, but the lamp in the scanner is not turned off
> whilst scanning, so the xray film is lit from 2 sides and the scans are
> very bad in quality. Even those parts of the xray film which have NO
> silver on it, do not become white, but have a shady gray.
>
> Trying to scan with Windows 98 or Windows 2000, using the original driver
> from Mustek, is a desaster as the scan area is automatically cut off, so
> that the scan does not cover the full surface of the glas area but only a
> stripe of, say, 10 cm or whatever the insane thing decides to take at the
> very moment. I found no way of shutting off this automatism.
> The scan result is a plain mess: varying of contrast and light will only
> change from a striped picture which looks like a real bad foto copy with a
> defect drum to a white background with sharp black spots on it.
> BUT: with Windows the lamp is shut off!
>
> The scanner itself is a shame: the scans are not sharp: if the paper in a
> reflective scan lifts of a mm from the glas, the picture is unsharp...
> The cause for this seems to be the technique used by Mustek. The more
> expensive scanners seem to have a better hardware.
>
> The problem with the sharpness is not related to the lighting. As the
> sharpness is not my main concern right now, I only need a way to turn off
> the lamp for scanning the xray films. The latest (and still very old) SANE
> linux driver I downloaded, but the result is the same as before.
>
> Please note:
>
> The scanner is a Mustek A3 USB, not a Mustek A3 USB 600, 1200 or whatever.
>
>
> What can be done with the SANE driver to work correctly?
>
> Thank you,
>
> Aribert Deckers
>
>
>
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