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. 15, 2002
Filed:
Feb. 01, 2001
Hideyuki Yano, Mishima, JP;
Michio Uchida, Susono, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus has an image bearing member, a charger for charging the image bearing member image forming means for selectively erasing charge on the image bearing member to thereby form an electrostatic image, and a developing device for developing the electrostatic image. The developing device includes a developing roll contacting with the image bearing member and is capable of having a developing bias applied thereto and contacting and spacing device for contacting and spacing the developing roll with respect to the image bearing member. The contacting and spacing device contacts the developing roll having the developing bias applied to the area thereof charged by the charger with the image bearing member at a start of image formation.