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

[mustek at ariplex.com]

"m. allan noah" wrote:

> Your mail gets thru just fine now.

I extra made a new mailbox and send these emails via web-based email. The
construction of the mailing-list adres checker I call rather paranoid. It
does not accept my sending email from a support account I have to use
because of my systems installation.



>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.

I wonder why no-one ever noticed the missing switch for the lamp. I am for
sure not the first one to try scanning xray films.

Aribert


> 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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>>
>
>
>
> --
> "The truth is an offense, but not a sin"
>