CanoScan 9000F – how to clean the inside glass

This is a brief guide about opening the scanner body and cleaning the internal side of the glass. After some years, the scanner works perfectly, but some tiny particles can accumulate inside and produce strange little spots over the scanned images.

You will need:

  • a Phillips screwdriver (cross head, to remove screws)
  • a little flathead screwdriver (to separate parts)
  • a clean microfiber cloth
  • a glass detergent or water for extra safety

 

1

Open the cover.

Remove the 2 screws.

NOTE: there is no need to unlink the flat cable that connects the top with the main body, but be careful to do not stretch it.

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2

Remove the black plastic front cover by first releasing the small clip at the bottom and then pulling it up. It may be easier to flip over the scanner and use a flathead screwdriver as lever between the gray edge and the black front cover.

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3

Remove the 2 other screws.

Then, push the plastic frame containing the glass towards the other side (where the front cover was mounted). You can insert the flathead screwdriver between the grey frame and the black glass frame and use it as a lever. Do it gently to avoid damaging the plastic parts.

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4

Now the glass frame should be released and you can lift it up and clean it.

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Other guides

http://www.carlmcmillan.com/CanonScanner/Canon.htm

https://www.youtube.com/watch?v=dAAB7dMbf-s

One thought on “CanoScan 9000F – how to clean the inside glass

  1. Thanks for this. I would have been in deep trouble without it. My scanner is next to a window, and when I went to scan a document today, I found tens of thousands of black ants inside the scanner. After using your guide to get the glass off, I had to dismantle a lot more – the ants were nesting in every nook and cranny. Ant eggs and ants everywhere! What a nightmare! Yes, I managed to break one of the plastic clips on the front but a small price to pay. Perhaps you need to emphasise that the glass holder is clipped into the back of the chassis and a table knife nicely ‘lifted’ the clips before I could slide the glass forward, But other than that minor point, a great guide. Thanks again.

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