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. 19, 2000
Filed:
Feb. 11, 2000
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An image forming apparatus, includes: a rotatable photosensitive member; a charging brush for uniformly charging the photosensitive member; a light scanning and irradiating portion for illuminating the photosensitive member scan-wise; a developing roller for supplying the toner to the static latent image on the photosensitive member to create a toner image; and a rotatable transfer roller arranged opposing the photosensitive member and urged against the photosensitive member by urging elements arranged around both ends thereof for allowing the toner image to a print medium. In this arrangement, the peripheral surface speed of the transfer roller is set at a speed slower, by less than about 2.3%, relative to the peripheral surface speed of the photosensitive member, and the length of the transfer roller is set shorter by the distance not exceeding about 6 mm than the maximum width of the reproducible print media, in the direction of the length.