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:
Mar. 30, 1982
Filed:
Aug. 06, 1979
Tatsuya Furukawa, Yokohama, JP;
Sadao Kakeno, Yokohama, JP;
Ricoh Co., Ltd., Tokyo, JP;
Abstract
An electrostatic type ink-jet recording method wherein ink drops issuing from a nozzle are never placed adjacent one another in the direction of the deflection. According to one embodiment of the present invention, when a number of n contiguous ink dots are to be formed in each column in the direction of the deflection by deflecting the charged ink drops at a rate of a number of n ink drops per deflection interval, a number of n ink dots are divided into a number of m groups (where m<n) each consisting of a number of n/m ink dots spaced apart from each other by a distance nearly equal to m times the diameter of the ink dots, and in response to a print signal a first group of ink dots are formed in one deflection interval, next a second group are formed in the one deflection interval, and so on until a m-th group are formed, whereby the merging and bouncing apart of charged ink drops may be avoided.