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:
Sep. 18, 2001
Filed:
May. 21, 1998
Steven John Buckby, East Bridford, GB;
Markem Technologies Limited, Nottingham, GB;
Abstract
A method of printing utilises a print head comprising a plurality of printing elements which may be actuated independently to print on a substrate, and a control means which produces control signals for the printing elements for independently addressing and controlling the printing elements so that the print head may print a desired character, the method comprising analysing the performance of the individual printing elements to determine the printing characteristic of the print head and to produce control data, feeding the control data to the control means which utilises the control data to compensate for variations in the performance of the individual printing elements whereby the control means produces modified control signals for the printing elements so as to adjust the printing characteristic of the print head, wherein the control means compensates for variations in the performance of the printing elements by activating one or more of the printing elements at a different time to others of the printing elements when printing a row of image.