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:
Mar. 07, 1989
Filed:
Feb. 27, 1987
Applicant:
Inventors:
Kouji Matsushita, Toyokawa, JP;
Hidekazu Nakagami, Toyohashi, JP;
Nobuaki Nishioka, Toyokawa, JP;
Tatsumi Makio, Toyohashi, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 355 / ; 430902 ;
Abstract
An improved electrostatic image forming apparatus including a controller for controlling the supplied voltage on the grid electrode of the main charger which gives the charges on the photosensitive member. Voltage on the grid electrode is controlled so that the charged potential on the photosensitive member may be held virtually at zero potential after the completion of the image forming operation until the predetermined time.