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:
Nov. 03, 1992
Filed:
May. 29, 1991
Kenichi Mizuma, Kawasaki, JP;
Hideya Furuta, Kawasaki, JP;
Nobuo Kasahara, Kawasaki, JP;
Noriyuki Kimura, Kawasaki, JP;
Shinju Nagatsuna, Tokyo, JP;
Mitsuru Mamizuka, Tokyo, JP;
Yoshihiro Sakai, Toyko, JP;
Kazunori Bannai, Tokyo, JP;
Kazushige Taguchi, Warabi, JP;
Yasunori Kawaishi, Narashino, JP;
Makoto Ohsaki, Yokohama, JP;
Tatsuo Hirono, Kawasaki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus has a plurality of developing containers for developing an electrostatic latent image of a latent image carrier by toners having colors different from each other except for black; a black developing container for color for storing black toner for color and operated when the developed image on the latent image carrier every color is overlapped and transferred onto a transfer material to provide a color image; a black developing container for a monochromatic image for storing black toner for a monochromatic image and operated when the monochromatic image is obtained; and a device for arranging the respective developing containers such that the developing containers are opposite to the latent image carrier. The other image forming apparatuses are also shown.