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:
Jul. 25, 1995
Filed:
Sep. 20, 1993
Tetsuo Katoh, Tokyo, JP;
Kabushkiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An image forming-apparatus of the present invention includes a charging device for applying a first potential and a second potential to a photosensitive drum, a keyboard for inputting a magnification of a copy image to be formed on the photosensitive drum, and a controller for controlling the charging device to control the magnitude of the potentials applied to the photosensitive drum from the charging device in accordance with the magnification input by the keyboard, thus increasing a difference between the first and second potentials in accordance with the degree of variation of the magnification in the case where the magnification input by the keyboard is less than 1.00.