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:
May. 08, 2001
Filed:
Sep. 22, 1998
Yoshifumi Shibata, Toyokawa, JP;
Toshio Yamaki, Takatsuki, JP;
Hirokatsu Shimada, Machida, JP;
Koji Uno, Kobe, JP;
Hiroshi Hiraguchi, Toyokama, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
A print head,comprises an insulative sheet member,that includes a plurality of apertures,arranged in rows. Arranged adjacent to each aperture,are first and second electrodes,and,. The first electrode,is communicated with a driver,while the second electrode,is communicated with a driver,or,. By applying first and second pulsating signals with the first and second electrodes, respectively, printing particles on a portion of bearing member,that opposes to the electrodes are energized to propel into corresponding aperture. A voltage and/or duration of the pulsating signal is determined according to the distance between the portion of the bearing member and the opposing aperture. Thereby, almost the same amount of printing particles are propelled into each aperture to form the same size dots on the sheet substrate