Re: Snapscan USB hangs - compression?

From: Steve Underwood (
Date: Sat Jun 30 2001 - 19:26:32 PDT

Hi John,

When you turn the image around, do you keep the original scan limits, or
adjust the scan to the new shape? It is far more likely there is a bug
which shows up only with certain scan limits than with certain image
content. In fact, there used to be some scan limit problems, and its
entirely possible thay have not all been fixed.


John Coppens wrote:
> Hi Steve.
> I've had this problem repeatedly - both scanning normal pages and scanning
> a lot of old slides, where saturated skies were a problem. I really couldn't
> believe there was a software problem at first. The I discovered that the
> same slide turned 90 degrees, would scan well.
> I'd like to help tracing the problem, if someone could indicate me where
> to start.
> John
> > A USB snapscan scanner uses exactly the same host communication protocol
> > as a SCSI one, and no compression is used. Apart from that I can't help
> > much.
> >
> > Regards,
> > Steve

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