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:
Apr. 06, 1993
Filed:
Nov. 25, 1991
Applicant:
Inventors:
Osamu Takemura, Nishinomiya, JP;
Yoshihiro Koyama, Osaka, JP;
Assignee:
Mita Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
3461 / ; 346159 ;
Abstract
An image forming apparatus comprising a pair of electrodes disposed on the opposite surfaces of a substrate having a plurality of toner passages in such a manner that an electric field can be formed inside each of the toner passages so as to allow charged toner to pass therethrough. The charged toner is fed on one electrode by means of a toner feed member. The toner feed member is moved away from the toner passages by means of a shifting member when an image forming operation is not performed.