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:
Feb. 02, 1999
Filed:
Jun. 20, 1994
Applicant:
Inventor:
Shigeru Kagayama, Owariasahi, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 55 ; 347151 ; 347125 ;
Abstract
An aperture electrode unit mounted in an image forming apparatus includes a polyimide insulating sheet, plural apertures, substantially T-shaped control electrode portions each of which is provided at a part of the peripheral edge of each aperture, and conductive wiring portions extending from the control electrode portions to the downstream side of a toner supply direction. With this construction, a minimum distance can be kept between a control electrode portion and a conductive wiring portion, which are adjacent to each other. So, no breakdown occurs, and image quality can be improved.