Page-wide array printing
AssigneeHewlett-Packard Development Company, L.P.
InventorsMarcos Casaldaliga Albisu, M. Isabel Borell Bayona, Leticia Rubio
Life of this patent
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Abstract
A method in a page-wide array printing apparatus comprising at least first and second printing dies that overlap in a page width direction comprises the steps of calibrating the printing apparatus in a media advance direction to a higher resolution than the page width direction, the media advance direction being perpendicular to the page width direction, and using printing masks to control the operation of a plurality of nozzles in an overlap area between the first and second printing dies to reduce any visible defects caused by dot placement errors in the page width direction.
Claims17
A method in a printing apparatus comprising a first and second printing dies that overlap in a page width direction, the method comprising:
- calibrating the printing apparatus in a media advance direction to a higher resolution than the page width direction, the media advance direction being perpendicular to the page width direction;
- and
- using printing masks to control the operation of a plurality of nozzles in an overlap area between the first and second printing dies to reduce any visible defects caused by dot placement errors in the page width direction.
A page-wide array printing apparatus comprising:
- a first and second printing dies that overlap in a page width direction, wherein the first and second printing dies comprise a plurality of printing nozzles in an overlap area of the first and second printing dies;
- a control unit to control the operation of the plurality of nozzles in the overlap area using a printing mask that reduces any visible defects caused by dot placement errors in the page width direction;
- wherein the printing apparatus is calibrated in a media advance direction to a predetermined resolution, the media advance direction being perpendicular to the page width direction.
A print apparatus comprising:
- a printhead having a first and second dies-that overlap in a page width direction, wherein the first and second dies comprise a plurality of nozzles in an overlap area of the first and second dies;
- a controller to:
- calibrate the print apparatus in a media advance direction to a predetermined resolution, the media advance direction being perpendicular to the page width direction;
- and
- control the operation of the plurality of nozzles in the overlap area to mask visible defects caused by dot placement errors in the page width direction.
Dependencies are inferred from the claim text.