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:
Apr. 17, 2012
Filed:
Jun. 15, 2010
Shigeru Oki, Kashiwa, JP;
Shigeru Oki, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a photosensitive member; a corona charger provided with a discharging wire for electrically charging the photosensitive member; an exposure device for exposing to light the photosensitive member; a developing device for developing the electrostatic image; a transfer device for transferring the toner image onto a sheet; an adjusting device for adjusting a distance from the discharging wire to the photosensitive member; a detecting device for detecting information corresponding to a surface potential of the photosensitive member at least two points; and an executing device configured to execute an operation in a mode in which an image including a reference mark positioned at a reference portion of said corona charger, for adjusting the position of the discharging wire by the adjusting mechanism and an adjusting mark for adjusting a distance of the discharging wire from the photosensitive member.