I dissembled a printer/scanner for parts.

This is a belt and roller and I think it was used for the scanner.

I can not figure out how the belt fits on the roller?

The belt is a continuous piece and the pin for the roller will not come out unless it is forced out.

Can someone solved the mystery of how to mount the belt?

enter image description here

  • 1
    The image of the roller is unclear. However, does the roller rest against the outside of the belt?? Jun 16, 2019 at 6:13
  • I agree with @DrMoishePippik -- could this roller just be used to push against the outside of the belt, to add tension? Here's an image. That would explain why you can't loop the belt through or around the roller. Jun 16, 2019 at 14:05

1 Answer 1


The belt doesn’t feed around the roller. That roller is used as a tensioner, so the roller is entirely inside the belt with the roller pushing the belt outwards to keep it tight.

  • Thanks for clearing up the mystery. :-)
    – fixit7
    Jun 19, 2019 at 15:31

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.