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:
Aug. 20, 1985

Filed:

Oct. 08, 1982
Applicant:
Inventors:

Mitsuo Motohashi, Tokyo, JP;

Mitsugu Nemoto, Tokyo, JP;

Akihiko Tamura, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 355 / ; 355 / ; 355 / ;
Abstract

An electrostatic reproducing apparatus wherein a detecting device for toner image density on the charge receptor and an exposure device are provided between the developing device and the charging device, a discharge current of the charging device and/or the quantity of light irradiated onto the charge receptor from the exposure device can be changed according to information from the detecting device. A detecting device for developing current at the time of development is provided in the developing device, a discharge current of the charging device can be changed according to information from the detecting device. A detecting device for a surface potential on the charge receptor after formation of the electrostatic latent image is provided, a discharge current of the charging device can be changed according to an output signal from the detecting means.


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