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. 26, 2011
Filed:
May. 09, 2006
Norio Nagata, Matsunoto, JP;
Norio Nagata, Matsunoto, 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 unitfor detecting the presence of roll paper, and a buffer mechanism unitfor absorbing variation in roll paper tension in order to keep the roll papertension less than or equal to a predetermined level. The buffer mechanism unitforms a housing unitfor housing at least part of the paper detection unitin a common area disposed in the buffer mechanism unitenabling the paper detection unitand buffer unitto operate in unison without interfering with the operation of the other.