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. 16, 2013
Filed:
Apr. 08, 2009
Motohiro Nakamaki, Azumino, JP;
Ichimi Masuda, Shiojiri, JP;
Nobuhiro Inoue, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A paper transportation control method for an apparatus enables conveying paper with appropriate tension on the paper by appropriately controlling a paper delivery operation of a delivery roller. When paper is conveyed by a paper feed roller pair of a roll paper printer, and tension on the paper is detected to exceed an upper tension limit based on displacement of a damping mechanism (a first time), a paper delivery operation of a delivery roller pair starts at a second time after a start operation delay time corresponding to a feed rate passes after the first time. When the tension returns to or below the upper tension limit, the paper delivery operation stops at a third time after a stop operation delay time similarly corresponding to the feed rate passes.