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:
Apr. 09, 2002
Filed:
Jul. 07, 2000
Seiko Epson Corporation, Tokyo, JP;
Abstract
A roll paper pulling load-buffering device enables smooth roll paper transportation and minimizes the space required for its installation in the printer. The load-buffering device has an arm that moves a specified angle around the shaft on which the roll paper turns. A roller extends widthwise to the roll paper from the arm at a point offset from the outside diameter of the roll. Paper pulled off the roll is draped around this roller . When a transportation roller is driven to advance paper from the roll by pulling from the end of the roll, tension applied to the paper causes the arm to turn in one direction by way of the intervening roller . An urging means such as a spring then urges the roller and arm in the opposite direction, maintaining even tension on both sides of the roller and thereby enabling smooth roll paper transportation.