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:
Dec. 02, 2014
Filed:
Aug. 21, 2012
Koichi Ebina, Matsumoto, JP;
Tomohisa Shirakawa, Suwa, JP;
Koichi Ebina, Matsumoto, JP;
Tomohisa Shirakawa, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A print medium conveyance devicehas a tractor, conveyance roller, and clutch mechanism. The tractorsequentially engages engagement holes formed in a line in the medium and conveys the print medium in a specific conveyance direction X. The conveyance rolleris disposed downstream from the tractorin the conveyance direction X, and has a friction layercontaining an inorganic particle dispersion formed on the surface. the clutch mechanismis between the conveyance motorand tractor, and interrupts transfer of drive power from the conveyance motorto the tractorat least in part under a specific condition. The print medium can therefore be conveyed with high precision while damage to the print medium by excessive tension can be prevented.