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. 20, 2003
Filed:
Jan. 11, 2002
Alessandro Scardovi, Ivrea, IT;
Renato Conta, Ivrea, IT;
Olivetti Tecnost S.p.A., Ivrea, IT;
Abstract
This invention relates to an integrated printhead ( ) for ink jet printers, wherein the addressing of the various nozzles is effected in at least 3-D mode. The head ( ) comprises a plurality of groups ( ) of ink jet elements ( ) arranged in M rows and L columns wherein, in particular, the selection and activation of the different columns L are performed, under the control of an external drive circuit, by means of logic circuits ( ) inside the head itself ( ). The head ( ) is advantageous with respect to the known art in that it does not require control of the L columns under critical conditions such as highly variable electric currents with very high peak values.