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:
Sep. 05, 1989
Filed:
Sep. 09, 1988
Masashi Shimosato, Shizuoka, JP;
Tokyo Electric Co., Ltd., Tokyo, JP;
Abstract
A printer comprising a plurality of recording electrodes capable of storing ink therein and jetting the ink from the respective front ends thereof, a counterelectrode disposed opposite to the recording electrodes with a recording sheet therebetween, a driving circuit for selectively applying a voltage pulses across the recording electrodes and the counterelectrode, and a pulse waveform control circuit which regulates the waveform of a voltage pulse to be applied to one of the recording electrodes according to the operating conditiion of the rest of the recording electrodes or a voltage control circuit for regulating a voltage to be applied to the recording electrode so that an electric field having a fixed field intensity distribution is formed always between the recording electrode and the counterelectrode. Thus, a fixed quantity of the ink is jetted always for every printing operation from the front end each recording electrode, and thereby characters are formed in a high print quality.