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:
Mar. 30, 1993

Filed:

Sep. 05, 1991
Applicant:
Inventors:

Hideki Takahashi, Fussa, JP;

Eiichi Takeuchi, Iruma, JP;

Shigeru Shimizu, Iruma, JP;

Tadao Yamamoto, Tokyo, JP;

Hideaki Inoue, Musashimurayama, JP;

Yasuhito Sato, Akishima, JP;

Kenji Nakayama, Kodaira, JP;

Toshiro Honda, Mitaka, JP;

Kenichiro Asako, Kokubunji, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346155 ; 3461531 ; 346159 ; 3461601 ;
Abstract

An electrostatic recording apparatus includes a magnet roll for conveying a developing agent along a predetermined developing agent convey path. A plurality of recording electrodes are arranged to oppose the magnet roll and along the developing agent convey path. An opposite electrode has a portion opposing the plurality of recording electrodes and is arranged with a predetermined gap from the plurality of recording electrodes. A voltage applying unit applies a recording voltage corresponding to supplied dot recording information to each of the plurality of recording electrodes to generate a transferring electric field for transferring the developing agent to the opposite electrode between the opposite electrode and the plurality of recording electrodes, thereby forming a dot recording image corresponding to the dot recording information on the opposite electrode. The voltage applying unit applies, between the plurality of recording electrodes and the opposite electrode, a recovering electric field for recovering a part of the developing agent transferred on the opposite electrode to the plurality of recording electrodes within one-dot recording period in which one dot of the dot recording information is recorded in the conveying direction of the developing agent.


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