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. 03, 2007
Filed:
Jan. 12, 2005
Hideo Ueda, Daito, JP;
Hideo Ueda, Daito, JP;
Funai Electric Co., Ltd., Osaka, JP;
Abstract
The photo printer has a conveyance unit, a printing unit, line sensors and a control unit. The conveyance unit conveys a roll paper along a conveyance path. The printing unit has a thermal head that prints images on the roll paper in a main scanning direction, which is perpendicular to the conveyance direction of the roll paper. The line sensors have a plurality of light emitting elements and light receiving elements disposed so as to span side edges of the conveyance path. The line sensors detect the roll paper on the conveyance path based on an amount of light received by the light receiving elements. The control unit detects a side edge of the roll paper, and also determines that a distal end of the roll paper is detected, based on the amount of light received by the light receiving elements.