Horizontal color plane registration correction
AssigneeHewlett-Packard Development Company, L.P.
InventorsDani Sagi, Craig Breen
Life of this patent
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Abstract
A method for detecting and correcting misregistration between a plurality of separations printed by a printing apparatus, comprising: producing a calibration print output on a substrate, the calibration print output including at least one calibration pattern, wherein the at least one calibration pattern translates horizontal misregistration into a detectable indicator of misregistration in a process direction; detecting misregistration; and, performing a fine adjustment of the horizontal position of at least one of the separations using the at least one calibration pattern.
Claims25
A method for detecting and correcting misregistration between a plurality of separations printed by a printing apparatus, comprising:
- producing a calibration print output on a substrate, the calibration print output including at least one calibration pattern, wherein the at least one calibration pattern translates horizontal misregistration into a detectable indicator of misregistration in a process direction;
- detecting misregistration;
- and,
- performing a fine adjustment of the horizontal position of at least one of the separations using the at least one calibration pattern.
A method for detecting misregistration between a plurality of separations printed by a printing apparatus, comprising:
- (a) producing a calibration print output on a substrate, the calibration print output including at least one calibration pattern with a plurality of corresponding offset markers, wherein the at least one calibration pattern translates horizontal misregistration into a detectable indicator of misregistration in a process direction.
A printing apparatus for detection and correction of horizontal misregistration between a plurality of print separations, comprising:
- a latent image forming device adapted for forming a plurality of latent images of said plurality of print separations, developing the latent image, and printing the latent image on a substrate;
- a controller in communication with at least said latent image forming device adapted to control said latent image forming device in the forming of a calibration pattern, which translates horizontal misregistration into a detectable indicator of misregistration in a process direction, sufficient for detection and correction of horizontal misregistration between said plurality of print separations on a calibration print output;
- and,
- wherein upon receipt by said controller of an indication of horizontal misregistration, said controller controls the latent image forming device to form the plurality of latent images in at least an incremental step towards correcting the horizontal misregistration.
Dependencies are inferred from the claim text.