Question about Canon CanoScan 8600F Flatbed Scanner

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Fog build up on underside of glass plate.

Scanner is Cannon 8600. On the underside of the glass plate there is a visible build up of fog or dust. What do I do to resolve this? Any solutions to this?

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  • Randomsausag Jan 10, 2009

    Fog build up on reverse side of glass.
    so how do you remove the glass to clean it.
    seems to be a major design fault in this scanner if there is no solution.
    Is the answer that i have to dismantle the scanner.

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I made contact with cannon and received this reply. I was satisfied with the answer but the question still remained on how to remove the glass should i wish to do so. Also after there answer... would there then be a problem if i did clean the reverse side. Their answer was initialy this...
The foggy haze on the glass is actually an anti-glare treatment that has
been intentionally applied to the underside of the scanner glass.  This 
treatment lessens the glare from the lamp under the glass and provides 
better image quality.  This haze may not appear uniform because of the 
shape of the scanner base and the components under the glass. However, 
the anti-glare treatment has been uniformly applied and the haze is as 
expected.  The treatment should not affect the scan quality or output of
the 8600F.  

Posted on Jan 14, 2009

  • eagle3x8 Jan 22, 2011

    The fogging appears to be from the outgassing of internal components. Doubt very much if there is anti-glare coating on the underside of the glass plate. Even if there is one, it can be safely clearned with distilled water and a piece of soft cloth, then use compress air to blow off any lint. Canon should provide instrucitions on how to remove the glass plate for cleaning.

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