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:
Jan. 14, 2014
Filed:
Nov. 06, 2008
Ammar Lecheheb, Cambridge, GB;
Robert Smith, Cambridge, GB;
Matthew Tomlin, Cambridge, GB;
Peter Kassner, Algarve, PT;
Michael Jeffrey Stamp, Leicester, GB;
Ammar Lecheheb, Cambridge, GB;
Robert Smith, Cambridge, GB;
Matthew Tomlin, Cambridge, GB;
Peter Kassner, Algarve, PT;
Michael Jeffrey Stamp, Leicester, GB;
Videojet Technologies Inc., Wood Dale, IL (US);
Abstract
A method of driving an electromechanical converter of a print head of a continuous inkjet printer, wherein the electromechanical converter is arranged to break up a continuous stream of ink into a plurality of drops. The method includes determining a modulation voltage to drive the electromechanical converter, at least a property of the modulation voltage being controlled to take into account movement of a break up point of the continuous stream of ink, and to ensure that in a characteristic of modulation voltage versus a property at least indicative of a break up point of the continuous stream of ink, the characteristic has a predetermined gradient, or a gradient related to this predetermined gradient; and driving the electromechanical converter at the determined modulation voltage.