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:
Dec. 24, 2002
Filed:
Mar. 30, 2001
Yasuo Yoda, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member for bearing a developer image, a transfer member for electrostatically transferring the developer image onto a transfer material, a power supply for applying a voltage to the transfer member, and an electric current detector for detecting a value of an electric current which flows to the transfer member when the voltage is applied from the power supply to the transfer member. The image forming apparatus controls an output of the power supply by varying the voltage applied to the transfer member by a predetermined voltage quantity in such a manner that the electric current value detected by the electric current detector becomes a target electric current value. The predetermined voltage quantity can be varied.