# Re: faint vertical stripes while scanning

Oliver.Rauch@Wolfsburg.DE
Mon, 9 Mar 1998 17:42:06 +0100 (MET)

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Hello Roger,

> My scanner calibrates the CCD on a piece of "reference gray" that is
> on the bottom (i.e. not normally visible part) of the ruler that is on
> the glass plate. Because they put on a little too little glue, the
> reference grey is not uniform, and the callibration is "off".
>
> In my case, moving the whole glass plate in the right direction solves
> my problem. Of course, this is a problem that the manufacturer should
> fix, but I'm lazy & cheap (:I got the thing cheap from a non-local
> store).

Thanks for that tip!

Bye
Oliver

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