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. 30, 1993
Filed:
Feb. 25, 1992
Applicant:
Inventor:
Tsutomu Mikami, Neyagawa, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355211 ; 355246 ; 356446 ;
Abstract
An image forming apparatus having a pattern forming device for forming on a photosensitive member, a plurality of patterned images having toner attached thereto; a light emitting device for irradiating light over the patterned images on the photosensitive member; and a photosensor device for detecting toner density on the basis of quantity of the light scattered by the patterned images; wherein an incident plane of the light emitting device relative to the photosensitive member is parallel to a cutting direction of a tubular stock of the photosensitive member.