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:
Mar. 02, 1999
Filed:
May. 13, 1997
Hidenori Hisada, Tokoname, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
An image forming device includes: a photosensitive drum that rotates in a rotational direction; a scanner unit that forms an electrostatic latent image on the photosensitive body; a developing unit that has an operating condition for developing the electrostatic latent image using toner; a transfer unit that transfers the toner image from the photosensitive body to the recording body; a cleaning roller disposed downstream from the transfer unit with respect to the rotational direction at a predetermined leveling position adjacent to the photosensitive body and having an adsorption mode, wherein the cleaning roller uses the potential difference between itself and the photosensitive drum to adsorb residual toner from the photosensitive drum, and a release mode, wherein the cleaning roller uses the potential difference between itself and the photosensitive drum to release residual toner back onto the photosensitive drum; and a controller for switching the cleaning roller into its adsorption mode when a lead edge of an image forming portion of the photosensitive body reaches the leveling position.