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:
Aug. 24, 1999
Filed:
Oct. 08, 1997
Applicant:
Inventors:
Michel Robert, Yverdon-Les-Bains, CH;
Alcide Clemente, Borgofranco di Ivrea, IT;
Assignee:
Olivetti-Lexikon S.p.A., Ivrea, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
347 40 ; 347 41 ; 347 43 ;
Abstract
The printhead according to the present invention is mechanically and electrically interchangeable on an ink jet dot printer with a known head, from which it differs substantially by having a different geometrical disposition of the nozzles, arranged in two parallel vertical rows at a constant pitch of 1/150.sup.th of an inch, where the corresponding nozzles of the two rows are staggered by 1/1600.sup.th of an inch in order to allow printing with a definition of at least 600.times.600 dots/inch by performing two consecutive print passes spaced apart by a line feed movement of value equal to 1/300.sup.th of an inch.