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. 24, 1990
Filed:
May. 31, 1989
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An image forming apparatus with a main body composed of a light source, a photoreceptor, charging device for electrostatically a charging the surface of the photoreceptor, a developing device for supplying toner particles to the surface of the photoreceptor a transferring charger for transferring a toner image formed on the surface of the photoreceptor onto a copying sheet, and a high-voltage source for applying a high voltage trigger to both said charging device and the transferring charger simultaneously. The apparatus is designed to execute original scanning as an original glass plate is moved with respect to the main body, characterized in containing a reflecting unit for reflecting the light from the light source to illuminate the surface of the photoreceptor at an area between the charging device and the developing device, the reflecting unit is disposed at a position corresponding to the trailing end of the original glass plate in its forward movement for original scanning. The apparatus is designed to eliminate the need of providing an independent light source for blank exposure thereby simplifying the arrangement for blank exposure to be performed with respect to the photoreceptor and saving the manufacturing cost for the apparatus.