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Re: filmscanners: Umax banding

Todd won't find this particularly useful, but he wrote:

>Could giving it a new SCSI ID help? A whack in the head, or a toss out the 

If their Customer Service isn't any better than HP's, any and all of the 
above are worth trying. Or, I could buy it from you for $3.50 and add it to 
the stack of used merchandise in my soon-to-open "Classic Doorstops 
Boutique, Inc." ;-)

Good luck and best regards--LRA

>From: tflash <tflash@earthlink.net>
>Reply-To: filmscanners@halftone.co.uk
>To: <filmscanners@halftone.co.uk>
>Subject: filmscanners: Umax banding
>Date: Mon, 23 Jul 2001 19:04:31 -0400
>My Umax 1200s flatbed has developed a nasty banding problem (in spite of
>plugging it into an isolated circuit breaker). I'm calling it banding, but
>this might be scans lines.
>In transmissive mode it is apparent throughout. I'm talking about regularly
>spaced red lines, horizontal to the CCD = perpendicular to the direction of
>the scan. At magnifications above 100% one sees they are prismatic, but 
>look red to me at normal viewing magnifications. Four fit inside a 35mm
>sprocket hole, with their accompanying empty spaces.
>Interestingly, I've just scanned a typed page in reflective mode (RGB), and
>I don't see the lines in the white of the page, but I do see it along the
>edges of type. The optical illusion is that the hollow spaces of the type
>are filled with the lines, but at higher magnification one sees that is 
>some spread off the edges, that do not connect at the center. In BW mode
>there are no lines, but the edges of the type looks like they were streaked
>by the lines.
>Finally, if I raise the resolution of the scan it increases the line
>frequency, and increases their spread.
>Does this mean it's transport mechanism is beat? It didn't use to do this,
>but I haven't used it for a while, and I guess it got moved around,
>otherwise I don't know what might have changed.
>Could giving it a new SCSI ID help? A whack in the head, or a toss out the

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