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:
Aug. 06, 2002
Filed:
Sep. 22, 2000
Yosuke Mizuyama, Fukuoka, JP;
Masaharu Oyama, Fukuoka, JP;
Matsushita Electric Industrial Co. Ltd., Osaka, JP;
Abstract
An electrostatic ink jet recording apparatus which includes a first electrode which is a recording electrode, a second electrode which is a collecting electrode, and a third electrode which is a common electrode. A potential difference is selectively given between the first and second electrodes for selectively attracting toner particles by electrostatic force. The ink is then ejected and traveled onto a recording medium for printing by applying potential to the third electrode. This configuration prevents dispersion of toner particles while applying ejection signals, enabling to suppress ejection failure and unstable discharge even in high frequency prints.