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.

Date of Patent:
Mar. 22, 2016

Filed:

Jul. 01, 2015
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Hiroyuki Nakayama, Shiojiri, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01); B41J 29/393 (2006.01); B41J 2/01 (2006.01); B41J 11/00 (2006.01);
U.S. Cl.
CPC ...
B41J 11/0095 (2013.01);
Abstract

A recording paper supply mechanismof a roll paper printerhas a roll paper holderthat holds the sides of a paper rollon the transverse axis X at a position above Zthe roll paper receiver. A delivery rolleris disposed above Zthe paper rollon the roll paper receiver. A detection unithas a emitterA and photodetectorB position so a detection beam L travels diagonally below the delivery roller, and the detection beam L intersects the path A of paper rollmovement when rising toward the delivery roller. A near-end state can therefore be detected based on output of the detection uniteven when the paper rollis raised by force pulling in the delivery direction.


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