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:
Jul. 12, 2016
Filed:
Oct. 29, 2010
Norio Nagata, Nagano-ken, JP;
Norio Nagata, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A printing apparatus and a roll paper transportation device which reduces the space needed to accommodate a roll paper buffer mechanism unit and paper detection unit, and to reduce poor electrical contact in the contact part of the paper detection unit. The roll paper transportation device has a paper detection unit for detecting the presence of roll paper. The paper detection unit itself comprises a detection lever that pivots rotationally when in contact with the roll paper, a cam formed integrally with the detection lever and having a curved surface that is concentric to the rotary axis of the detection lever, and a switch lever that contacts the curved surface of the cam.