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.

Date of Patent:
May. 03, 1994

Filed:

Jan. 21, 1992
Applicant:
Inventors:

Kazuo Sato, Hachioji, JP;

Hideki Endo, Hachioji, JP;

Satoshi Watanabe, Hachioji, JP;

Assignee:

Konica Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355233 ; 355208 ;
Abstract

An apparatus for forming an image of a document on a photoreceptor includes a charging device for charging the photoreceptor so as to form an image region, an eliminating device for eliminating a charge on the photoreceptor to form a non-image region, and a scanner for moving from a stop position to scan a document with an exposure light so that a latent image, corresponding to an image of the document, is formed on the image region of the photoreceptor. The scanner also moves backward and stops at the stop position. A position signal corresponding to a predetermined position of the scanner is generated by a signal device. A timer starts counting a time responsive to the position signal. The timer produces a first and second timing signal after the scanner stops at the stop position. The scanner is controlled to move from the stop position to form a next latent image on the photoreceptor in response to the first timing signal, and the eliminating device is controlled to stop eliminating a charge on the photoreceptor so as to provide an image region on the photoreceptor for a next latent image in response to the second timing signal. The eliminating device provides a non-image region on the photoreceptor at a portion of the photoreceptor in a vicinity of an edge portion of the document.


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