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Smudges on scanner glass inside unit

I have a cannon mp390 and there are smudges on the scanner glass inside the unit, is there any way for the glass to be removed and cleaned? any thing scanned comes out with these marks on them.

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  • farcry Oct 16, 2007

    i have tried that, the marks seem to inside the unit under the scanning area. it looks almost like condesation, but its got a red sheen to it. i brought the printer a year or so ago but have never need to use the scanner untill now. every thing else is fine with the unit apart from these marks. cannon are not intreasted due to it being out of warrenty by a couple of months.

  • longarche Jan 09, 2009

    The smudges are on the INSIDE of the glass... It has to be opened to clean it, because there's no way to get to them otherwise...

  • longarche May 11, 2010

    The smudges are on the INSIDE of the glass... It has to be opened to
    clean it, because there's no way to get to them otherwise...


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Hi im jules_09,the scanner glas should not be remove from the unit because if it is remove you might get a error code,so just get a soft cloth or a any kind of tissue and table tissue will do then apply a glass  cleaner on it then gently rob it on the scanner glass until the glass is clean just make sure the unit is off and ulplug.if the scanner glass is cleaned

Posted on Oct 15, 2007

  • julius De los Santos Nov 03, 2007

    hi im jules_09.have you tried cleaning it with a alcohol? or a metal folish?try it if your going to use metal folish on the scanner apply just a small amount let it dry then use a fine cotton cloth must be soft so u can not scrath it.try see if it work

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