Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2006-12-05
2009-11-10
Nguyen, Thinh H (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C347S015000
Reexamination Certificate
active
07614713
ABSTRACT:
The present invention provides a mask for divided printing that completes an image by plural scans using inks of different plural inks, the mask being able to suppress possible grains during printing to reduce image degradation resulting from beading. If for example, among the print permitting pixels for which the total repulsive potential is to be calculated, a print permitting pixel Do has the highest total repulsive potential, changes in repulsive potential after movement of the pixels are determined and the print permitting pixel Do is moved to a pixel having the lowest total repulsive potential after the movement. This processing is repeated to enable a reduction in the total energy of the entire plane. Consequently, the print permitting pixels are appropriately dispersed in overlapping plane masks so as to have few low frequency components.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Nguyen Thinh H
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