Cleaning Scanner Glass (Inside) hp3970
 

On Fri, 01 Jun 2007 03:06:06 GMT, "Michael A. Terrell"
wrote:

JackShephard wrote:

Glass might look green on edge, but a piece that thin is NOT going to
alter the color of a capture, so standard double strength glass would
surely work just fine, idiot.


Wow, you don't care how many people see how truely stupid you are. I
know a guy that tried 'standard double strength glass' instead of the
optical grade glass. It caused so much distortion in the scanned images
that it was useless, just like you.

Replacement glass for scanners, copiers, etc must be:

1) Optical grade float glass, or you'll get distortion of various
sorts - window glass is unlikely to be flat & even enough.

2) The same thickness as the original, or the optics won't focus
correctly, plus the retaining slot/clips probably won't hold it
securely, or might bow it or crack it during installation.

3) The same (or similar) refractive index as the original, or you risk
getting any - or all - of: poor contrast, lamp flare, or 'ghost'
images, due to internal reflections in the glass.

And yes, Prongy / JackShephard is a useless idiot, but of course you
already knew that. ;^)

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