Railfan Technology > Slide scanning problem

I have an Epson scanner that will scan 4 slides at a time. Recently I started getting a line running from the top to bottom on on the right side of the scans. The line appears in the same location on all scans. Heres an example, just to the right of the engine. I cant see anything that might cause it to happen. Any ideas why?

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biff Wrote:
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> I have an Epson scanner that will scan 4 slides at
> a time. Recently I started getting a line running
> from the top to bottom on on the right side of the
> scans. The line appears in the same location on
> all scans. Heres an example, just to the right of
> the engine. I cant see anything that might cause
> it to happen. Any ideas why?

biff,

My guess would be dirt or dust on the sensor.

J.

My first Epson did this brand new out of the box. I called Epson and they called it a hardware issue, after running me through a battery of tests. Returned it for an exchange.

Scanned over 25,000 slides with the replacement Epson so far. No recurrence of the problem.

Randy

This is probably caused by a bad cell in the CCD (charge-coupled device) sensor, which is normally a linear array in scanners:

http://www.scantips.com/chap3c.html

Ray

Does this go through all four slides or is it in the 'other' direction?

Looks like a show stopper if it goes through all four images.

All 4 scans will have it in the same position.

TCnR Wrote:
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> Does this go through all four slides or is it in
> the 'other' direction?
>
> Looks like a show stopper if it goes through all
> four images.

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