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:
May. 13, 2003
Filed:
Mar. 13, 2002
Takahiro Yamada, Hitachinaka, JP;
Kunio Satou, Hitachinaka, JP;
Shinya Kobayashi, Hitachinaka, JP;
Hitoshi Kida, Hitachinaka, JP;
Kazuo Shimizu, Hitachinaka, JP;
Toshitaka Ogawa, Hitachinaka, JP;
Yoshikane Matsumoto, Hitachinaka, JP;
Lee Chahn, Hitachi, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
A back electrode is provided at a rear surface side of a recording sheet . An orifice electrode is attached to an orifice plate of a head module . The orifice electrode , the orifice plate , and ink filling in a nozzle element are electrically connected to the ground. The back electrode has the potential corresponding to that of a charging/deflecting signal. With this configuration, the orifice electrode , a pressure chamber , and the back electrode together generates an inclined electric field at a position a close to a center trajectory . A charged ink droplet is deflected greatly by the inclined electric field , at an early stage of the ink flight, and even greater deflection can be achieved as the flight proceeds.