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:
Jul. 18, 1989
Filed:
Nov. 07, 1985
Hitachi, Ltd., Tokyo, JP;
Hitachi Seiko, Ltd., Tokyo, JP;
Abstract
In an ink-jet recording device in which a nozzle is so excited that ink droplets jetted from the nozzle are alternately separated into large-diameter ink droplets and small-diameter ink droplets, and recording ink droplets to be stuck onto the recording surface are made to fly straight while nonrecording ink droplets are charged and deflected to be retrieved by a gutter, there are provided a nonrecording ink droplet sense circuit and a correction signal generator circuit for generating correction charging voltage when an ink droplet to be controlled is generated provided that the preceding ink droplet is a nonrecording ink droplet and the ink droplet to be controlled is a recording ink droplet.