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. 17, 2012
Filed:
May. 19, 2009
Seiichiro Yoda, Chiba, JP;
Seiichiro Yoda, Chiba, JP;
Seiko I Infotech Inc., , JP;
Abstract
To release a medium securely from a fixed roll without damaging the medium. A releasing roller is disposed between a roll and a transport roller for nipping a medium and transporting the medium to a printing position. The releasing roller is rotated by a releasing motor so as to release the medium from the roll in a tangential direction of the roll. In addition, a sag part obtained by sagging the medium is formed between the releasing roller and the transport roller. A tension roller is placed on the sag part so that a constant tension is exerted on the released medium. A sag amount of the sag part is detected by monitoring a lower end part of the sag part with a sensor utilizing infrared rays. A printing apparatus releases the medium by the releasing roller to supply the medium so that the sag amount is within a predetermined range. The medium on which the constant tension is exerted is delivered by the transport roller onto a platen and is printed by a head.