[sane-devel] xsane preview and scanning problem

[Oliver Rauch]

There are several timing settings defined for the Astra 2400S.
You also have to use these settings for your vendor/model definition.
Take a look at umax.c and search for "Astra 2400S", near line 2817.

Please send umax-scanner.c to me then I will include your model
into the next sane release.

Best regards
Oliver

On Tuesday 04 February 2003 12:47, HoonKook Shim wrote:
> Hi to all. I am using PowerScanII of TriGem Corporation, a OEM product of
> Astra2400, a UMAX scanner. The only difference is the vendor and model
> name, therefore fully compatible with Umax scanner driver. There was no
> problem using the scanner on Windows platform using UMAX scanner drivers..
> VistaScan.
>
> Since the Sane doesn't support my scanner, I modified the sourcefile,
> 'umax-scanner.c' in backend directory, inserted "TriGem" and "PowerScanII"
> element to scanner_str[], and compiled it. And everything works fine.
> sane-find-scanner, scanimage, etc.
>
> The problem is that scanning procedure freezes when I try to scan image
> after scanning preview image. Each procedure works fine, i.e. I can scan
> image without any problem if I do not use preview program-I mean when I
> scan whole area.. - and preview program works fine. But when I try to scan
> image after setting the scanning area in preview window, the scanner
> freezes and stops scanning. It looks like starting normally, but at the
> very point the scanner head starts to move, the blinking ready light goes
> off , and scanner freezes. It worked once, though, when the scanning area
> is not off the top edge. But when I set the scanning area off the top edge,
> the same thing occured. I'm suspecting it as a error occuring during
> cropping mechanism, or timing, something like that.
>
> Xsane program seems like waiting for scanner to complete the scanning
> process, so I have to halt it manually. But since then I couldn't do
> anything with the scanner because the sane couldn't fine the scanner
> anymore. I think that's because of the blacked-out ready lamp.
>
> So, what I wanna ask is two things..
>
> 1. How can I scan the image with the preview feature?
>
> 2. How can I set the scanner online again when it went offline?
>
> Thanks in advace for your patience of reading my poor English.
>
>
>
>
> ---------------------------------
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