The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2013
Filed:
Sep. 04, 2012
Kohei Deno, Moriya, JP;
Masaki Maeno, Toride, JP;
Kohei Deno, Moriya, JP;
Masaki Maeno, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A sheet conveying apparatus has an upstream roller and a registration roller configured so that the sheet conveyed by the upstream roller abuts the registration roller to form a loop in the sheet to correct for skew. The skew of the sheet is corrected for by the leading edge of the sheet abutting the registration roller to bend the sheet so as to form the loop in the sheet. A resist sensor detects a time difference of passing time between the advanced leading edge and the retarded leading edge in the downstream leading edge of the sheet conveyed by the upstream roller, detects the skew amount of the sheet based on the time difference, and changes the backward rotation time of the registration roller depending on the skew amount.