Patent ID: 9617099
Date: 2017-04-11
CPC Classifications: B65H,F16H,G07D

Claim:
1. A paper media recognition device, comprising: a main body; and an alignment unit in the main body and configured to align a paper medium with a reference alignment surface, the paper medium being transferred along a transfer path in the main body, the alignment unit comprising: a transfer roller configured to transfer the paper medium along the transfer path; and an alignment roller configured to transfer the paper medium in a direction traversing the transfer path and toward the reference alignment surface, and wherein the transfer roller and the alignment roller have a phase difference such that a distance that the paper medium is transferred by the alignment roller is longer than a distance that the paper medium is transferred by the transfer roller and wherein the transfer roller has a first non-circular shape having first symmetrical opposite ends to contact the paper medium as the transfer roller is rotated, and the alignment roller has a second non-circular shape having second symmetrical opposite ends to contact the paper medium as the alignment roller is rotated, and wherein a length of the first symmetrical opposite ends along which the transfer roller contacts the paper medium is shorter than a length of the second symmetrical opposite ends along which the alignment roller contacts the paper medium.