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:
Sep. 21, 2010
Filed:
Jun. 06, 2005
Masahiko Ueda, Musashino, JP;
Seiji Morita, Sayama, JP;
Hiroshi Sakurai, Tokorozawa, JP;
Citizen Holdings Co., Ltd., Tokyo, JP;
Abstract
Ribbon tension detecting means (), which are formed of a plate-like lever body () each, are located individually on the upstream side and the downstream side of a platen () with respect to its travel. The plate-like lever body () has first and second rollers () on the upstream and downstream sides with respect to travel of a ribbon, and swings around an axis of rotation of the second roller (), depending on a tension of the ribbon traveling guided by the rollers (). If the amount of its swing is not less than or not more than a fixed value, a ribbon feed motor () or a ribbon take-up motor () is driven. Further, the ribbon tension detecting means () are provided with a smoothing member which touches the ink ribbon () to remove wrinkles from the ink ribbon ().