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:
Aug. 19, 1980
Filed:
May. 04, 1978
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An electrophotographic apparatus particularly suitable for printing a plurality of duplicated copies from each of a plurality of sheet-like documents comprising a sheet-like document feeding device for feeding the sheet-like document at a constant velocity, an optical system including an illumination lamp and a projecting lens for exposing and scanning the document during the traveling of the document, a photosensitive drum for forming a latent image corresponding to the document image and retaining the latent image for a relatively long time period, a device for developing the latent image with toner particles, a device for transferring the toner image onto a record paper and a device for fixing the toner image on the paper. After the latent image has been once formed on the photosensitive drum the given number of duplicated copies are formed by repeatedly effecting the development, transfer and fixing operations. The document can be set in the document feeding device while the duplicating operation for forming a plurality of copies for the previous document is carried out.