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:
Oct. 23, 1990
Filed:
Nov. 16, 1989
Toshiro Bando, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image recording apparatus for electrostatically forming a latent image representative of a document on a photoconductive element, or image carrier, and developing the latent image by a developer to produce a visible image. The apparatus is capable of controlling the density of an image to be recorded by adjusting the amount of illumination, toner density, bias voltage for development, etc. A target toner density is selected in response to the density of a toner image which is formed on the image carrier and has a relatively high density. The amount of illumination is adjusted in response to the density of a toner image also formed on the image carrier and having a relatively low density. Further, the bis voltage is selected on the basis of a ratio of the density of a reference density pattern and the actual density of a document.