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:
Dec. 08, 1992
Filed:
May. 30, 1991
Applicant:
Inventors:
Assignee:
Mita Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
3461 / ; 346159 ;
Abstract
An image forming apparatus is provided, in which a plurality of toner passage holes are formed in a board, and an image information generator applies a voltage between a pair of electrodes to form an electric field within each toner passage hole, so as to pass toner through the toner passage hole. The diameter and the axial length of each toner passage hole are so determined as to avoid clogging with toner.