Dual pass uniformity printing compensation mechanism
AssigneeRicoh Company, Ltd.
InventorsMikel F. Stanich, Nikita Gurudath, Larry Ernst, William E. Manchester
Life of this patent
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Abstract
A printing system is disclosed. The printing system includes a printer to print image data to a medium. The printer includes a first pass channel including a first set of pel forming elements to print a first component of the image data and a second pass channel including a second set of pel forming elements to print a second component of the image data, wherein the first component of the image data and the second component of the image data occupy a same region on the print medium. The printing system also includes a print controller to perform uniformity compensation based on a combined compensation of the first pass channel and the second pass channel.
Claims23
A printing system comprising:
- a print controller to perform a calibration of a first pass channel and a second pass channel based on a combined compensation of a first component of an image data to print at a first set of pixel (pel) forming elements of the first pass channel and a second component of the image data to print at a second set of pel forming elements of the second pass channel, wherein the combined compensation is based on measurement data corresponding to a first of a plurality of regions printed on a print medium by the first pass channel and the second pass channel, the first set of pel forming elements are separate from the second set of pel forming elements, and wherein the first component of the image data and the second component of the image data occupy the first of the plurality of regions on the print medium, and each of the plurality of regions forms a column on the print medium.
A method comprising:
- performing a calibration of a first pass channel and the second pass channel based on a combined compensation of a first component of the image data to print at a first pass channel including a first set of one or more pixel (pel) forming elements and a second component of the image data to print at a second pass channel including a second set of one or more pel forming elements, wherein the first component of the image data and the second component of the image data occupy a first of a plurality of regions on the print medium, and each of the plurality of regions forms a column on a print medium, the first set of pel forming elements are separate from the second set of pel forming elements, and wherein the combined compensation is based on measurement data corresponding to a the first of the plurality of regions printed by the first pass channel and the second pass channel.
Dependencies are inferred from the claim text.