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Established
I have put up some diagrams and resources for opening up Epson scanners to clean them. A small needle can be used to pry out the caps without too much damage but the "stick and rip" method with a good sticky tape like quality 3M duct tape (not cheap stuff from the dollar store) often works without leaving marks.
http://www.betterscanning.com/scanning/dismantling.html
Doug
http://www.betterscanning.com/scanning/dismantling.html
Doug