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:
Apr. 14, 1992
Filed:
Oct. 21, 1988
Shoji Igawa, Osaka, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A copying apparatus is provided with a grid forming function wherein a grid pattern can be formed on plain copy paper to accurately and readily indicate the size or position of an image formed thereon. The copying apparatus includes a photosensitive member, a writing head including a plurality of linear writing elements, a driving circuit for driving the writing elements, a control system for controlling the driving circuit to cause the driving circuit, and thereby the writing head, to form an electrostatic image of a grid pattern on the photosensitive member, a developer for developing the electrostatic image to form a toner image of the grid pattern, and a transfer device for forming the grid pattern toner image onto a copy paper.