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. 06, 1994
Filed:
Oct. 18, 1993
Masaki Asano, Amagasaki, JP;
Shuji Iino, Hirakata, JP;
Akihito Ikegawa, Sakai, JP;
Izumi Osawa, Ikeda, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
An image forming apparatus includes electrostatic latent image carrier having a moving surface to be charged and contact charging device for selectively applying a first charging voltage and a second charging voltage to the surface to be charged, the second charging voltage having the same polarity as the first charging voltage and having an absolute value smaller than that of the first charging voltage, the first charging voltage being applied to an electrostatic latent image forming region of the surface to be charged, the first charging voltage being changed to the second charging voltage when a region confronting the contact charging device moves from the electrostatic latent image forming region to a non-image portion in accordance with movement of the surface to be charged.