Printhead color density correction in printing systems

#This patent application is related to U.S. patent application Ser. No. 13/747,552, entitled “PRINTHEAD COLOR DENSITY CORRECTION IN PRINTING SYSTEMS”, filed concurrently herewith. This patent application is related to U.S. patent application Ser. Nos. 13/332,415 and 13/332,417, both filed on Dec. 21, 2011. This patent application is related to U.S. patent application Ser. Nos. 13/537,240 and 13/537,247, both filed on Jun. 29, 2012.

#The present invention generally relates to printing systems and more particularly to methods for printhead color density correction in printing systems.

#In commercial inkjet printing systems, the lineheads typically include multiple printheads that jet ink or another substance onto a print media, such as paper. Each printhead can include a nozzle plate having precisely sized and spaced nozzles. The diameter of each nozzle can range from five to twenty micrometers. Because multiple nozzle plates are used in many printing systems, the number of nozzles that are fabricated for each linehead can range between 12,000 to 30,000 nozzles.

#Embodiments of the invention are better understood with reference to the following drawings. The elements of the drawings are not necessarily to scale relative to each other.

#FIG. 1 illustrates one example of an inkjet printing system that prints on a continuous web of print media;

#FIG. 2 depicts a portion of printing system 100 in more detail;

#Throughout the specification and claims, the following terms take the meanings explicitly associated herein, unless the context clearly dictates otherwise. The meaning of “a,” “an,” and “the” includes plural reference, the meaning of “in” includes “in” and “on.” Additionally, directional terms such as “on”, “over”, “top”, “bottom”, “left”, “right” are used with reference to the orientation of the Figure(s) being described. Because components of embodiments of the present invention can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration only and is in no way limiting.

#The present description will be directed in particular to elements forming part of, or cooperating more directly with, an apparatus in accordance with the present invention. It is to be understood that elements not specifically shown, labeled, or described can take various forms well known to those skilled in the art. In the following description and drawings, identical reference numerals have been used, where possible, to designate identical elements. It is to be understood that elements and components can be referred to in singular or plural form, as appropriate, without limiting the scope of the invention.

#The example embodiments of the present invention are illustrated schematically and not to scale for the sake of clarity. One of ordinary skill in the art will be able to readily determine the specific size and interconnections of the elements of the example embodiments of the present invention.