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. 25, 1994
Filed:
Dec. 22, 1992
Applicant:
Inventors:
Naoto Iwao, Nagoya, JP;
Shoji Yamada, Konan, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346159 ; 355261 ; 355262 ;
Abstract
In an image forming apparatus for forming a toner image on image recording medium, an aperture electrode is provided for modulating electrically charged toner particles to be applied on image recording medium to thereby form a toner image on the image recording medium. An oscillating device is provided on the aperture electrode for causing the aperture electrode to vibrate. The image forming apparatus is further provided with modulating device for modulating vibration properties of the vibration caused by the oscillating device. The modulating device modulates amplitude or frequency of the vibration.