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. 30, 2006
Filed:
Aug. 28, 2003
Benjamin A. Askren, Lexington, KY (US);
Robert L. Burdick, Lancaster, KY (US);
Bill C. Chappel, Mt. Sterling, KY (US);
Christopher G. Chee, Lexington, KY (US);
William P. Cook, Lexington, KY (US);
David M. Cseledy, Lexington, KY (US);
Larry S. Foster, Lexington, KY (US);
James P. Harden, Lexington, KY (US);
William S. Klein, Richmond, KY (US);
Benjamin A. Askren, Lexington, KY (US);
Robert L. Burdick, Lancaster, KY (US);
Bill C. Chappel, Mt. Sterling, KY (US);
Christopher G. Chee, Lexington, KY (US);
William P. Cook, Lexington, KY (US);
David M. Cseledy, Lexington, KY (US);
Larry S. Foster, Lexington, KY (US);
James P. Harden, Lexington, KY (US);
William S. Klein, Richmond, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
An apparatus and method for ink-jet printing onto an intermediate drum in a helical pattern while correcting for image skew and aliasing. A plurality of ink-jet print heads place an image on an intermediate drum, impervious to ink, in a helical patter. To compensate for helical printing, the image is altered by nozzle placement and image manipulation to correct for skewing errors, and thereafter, the nozzle timing is adjusted to correct for aliasing. The plurality of print heads move parallel to the axis of rotation of the drum while the drum is simultaneously rotating, causing the image to be placed in a helical pattern. Once the entire image is placed on the drum, paper is rolled against the drum under pressure and the image is transferred thereto.