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:
Jan. 21, 1992
Filed:
Aug. 29, 1990
Kazushige Taguchi, Warabe, JP;
Hideya Furuta, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus has a device for performing a scanning operation using a laser beam by a polygon mirror at a predetermined timing; a writing device for sequentially forming a plurality of images by repeatedly performing an optical writing operation a plurality of times on a photosensitive body; a transfer device for sequentially overlapping and transferring the plurality of images onto a transferred member; and a device for starting the optical writing operation each time by the writing device from the same polygon mirror face. The photosensitive body is constructed by a photosensitive body belt and the optical writing operation is started from the same polygon mirror face approximately every integral multiple of one rotation of a driving roller for the photosensitive body.