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:
Mar. 10, 1998
Filed:
Aug. 28, 1995
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention relates to a print head in a powder jet image forming apparatus comprising a plurality of first electrodes formed on the surface of an insulating layer on the side of a developer supplying roller and a plurality of second electrodes formed on the surface of the insulating layer on the side of a paper conveying section, a developer through-hole being provided at each of intersections of the first electrodes and the second electrodes. In the present invention, one or a plurality of guard electrodes for drawing a developer from the developer supplying roller and supplying the developer to the first electrodes are provided around the first electrodes on the surface of the insulating layer.