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:
Jun. 12, 1990
Filed:
Apr. 04, 1988
Applicant:
Inventors:
Assignee:
Konishirpku Photo Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355210 ; 355326 ;
Abstract
An image forming apparatus wherein in multi-color mode a multi-color image is formed by repeating a series of uniform charging, image exposing and developing steps to form a plurality of color toner image on a surface of an image retainer, and transferring the color toner image to a transfer material, and wherein in mono-color mode a mono-color image is formed by uniform charging, image exposing and developing in a single step to form a mono-color toner image on the surface of the image retainer, and transferring the mono-color toner image to a transfer material one of the modes being selected. The image retainer is exposed uniformly before the uniform charging step.