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:
Jan. 21, 2003
Filed:
Sep. 08, 2000
Taizo Nozawa, Kanagawa-ken, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
The image density control method in the image forming apparatus including the charging unit for charging the photoconductor, the exposure unit for exposing the photoconductor and forming an electrostatic latent image, and the developing unit for visualizing the electrostatic latent image with toner comprises a step of forming a predetermined reference image by the developing unit, a step of detecting the toner density of the reference image, a step of setting a target density value or the reference image formed on the photoconductor according to the number of images to be formed, and a step of controlling so as to change at least one of the charging potential to be given to the photoconductor from the charging unit, the exposure amount at the time of exposure from the exposure unit to the photoconductor, and the development bias voltage given to the developing unit on the basis of the comparison result of the value detected at the detection step with the target density value set at the setting step.