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:
Oct. 27, 1981
Filed:
Apr. 23, 1979
Kiyohito Ebisawa, Tokyo, JP;
Satoshi Hisabayashi, Hachioji, JP;
Toshio Koike, Hachioji, JP;
Kazuyuki Hashimoto, Hachioji, JP;
Iwatsu Electric Co., Ltd., Tokyo, JP;
Abstract
An exposure device of an electrographic copying apparatus including at least one heat generative exposure lamp for exposing a photosensitive paper corresponding to an original to be copied. A paper detector detects the photosensitive paper at an inlet of the apparatus. A rotatable cam is actuated by a signal from the paper detector and, in turn, actuates a switching apparatus in a predetermined sequence during one revolution thereof. A relay is actuated by one of said switches so as to be self-latched for a predetermined time, to activate the exposure lamp for the predetermined time.