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. 15, 1988
Filed:
Oct. 20, 1987
Nobutoshi Yoshida, Yokohama, JP;
Atushi Takagi, Minami-Ashigara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A multiple image forming system for synthesizing images having different kinds of gradation characteristics of an original comprises: a latent image forming circuit for projecting a reflected light from the original onto a photo sensitive drum and forming an electrostatic latent image onto this drum; a developing unit to develop the latent image; and a control circuit to make the latent image forming circuit and the developing unit operative every gradation characteristic for the different gradation characteristic areas in the original, wherein the control circuit changes the latent image forming conditions such as an amount of exposing light to the original of the latent image forming circuit and the developing conditions such as a developing bias of the developing unit in accordance with the kind of gradation characteristic. With this system, the image areas having different kinds of gradation characteristics which mixedly exist in one original are automatically detected and the latent image forming circuit is automatically properly controlled, so that the proper image is reproduced.