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:
Nov. 07, 2000
Filed:
Apr. 08, 1999
Katsutoshi Ogawa, Hirakata, JP;
Yoshitaka Kitaoka, Kadoma, JP;
Akira Kumon, Katano, JP;
Masahiro Aizawa, Takatsuki, JP;
Hiroyuki Matsuo, Neyagawa, JP;
Akira Fukano, Ikoma, JP;
Akira Ryoji, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Array Printers AB, Vastra Frolunda, SE;
Abstract
In an image forming device wherein printing is accomplished such that passing of charged toners fed from a developer roller 2 through a plurality of openings 14 is controlled by control electrodes 16 of an aperture electrode 12 in accordance with image signals, toners held on the developer roller 2 are caused to reach the vicinity of the openings 14, by inputting a predetermined signal to the control electrodes 16 of the aperture electrode 12, at least once during the period when no image forming action in accordance with the prescribed image signals is performed.