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. 04, 2001
Filed:
Jun. 19, 1998
Koichi Haga, Nakai-machi, JP;
Hiroaki Satoh, Nakai-machi, JP;
Ichirou Asai, Nakai-machi, JP;
Jiro Minabe, Nakai-machi, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A recording head for carrying out printing by jetting ink drops for deposition at predetermined positions on recording media, and allowing minute drops to be jetted without using a nozzle to record high-definition images. The recording head includes an elastic member vibrating in response to the excitation of a vibration generating means vibrating in accordance with a pixel signal, wherein capillary waves are generated on the surface of ink by the vibration of the elastic member to jet the ink for deposition on recording media. The elastic member is of a cantilever construction that bending vibration is made by excitation. Also, the elastic member has a length of about 2&lgr; as the width of a side perpendicular to a vibration direction of bending vibration in the neighborhood of the tip of a free end of a cantilever construction, where &lgr; is given by the following expression: &lgr;={8&pgr;&sgr;/(&rgr;fe,)},×10,(&mgr;m), where &sgr; is an ink surface tension (mN/m), &rgr; is an ink density (g/cm,), and fe is an excitation frequency (Hz).