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:
Nov. 23, 1993
Filed:
May. 11, 1992
Masaharu Tsukada, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus for forming an image by using a scanning light beam includes a light beam generator for generating a light beam and for modulating the light beam in accordance with an image signal, a scanner for scanning a photosensitive member with the light beam, and a beam detector for detecting the light beam scanned by the scanning means at a predetermined position along the scanning path. Setting circuitry switches and sets a pixel density of an image to be formed. The light quantity of the light beam is controlled in accordance with the pixel density set by the setting circuitry, and/or the light beam detection level of the detector is switched in accordance with the pixel density set by the setting circuitry.