Hi there I found this in an old printer.. I know that it counts every little line on the transparent disc, but what is it called, and does anyone know where i can read about how to use it?? Thanks in advance Mads

Quick component question

system January 21, 2011, 6:18pm 4

Please post some more and more detailed pictures. You can try looking up the text on the side in combination with 'rotary encoder' on google.

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