METHOD OF PRINTING AN OBJECT HAVING A SURFACE OF VARYING HEIGHT
First Claim
1. A method of printing an object on a support, said object having a surface of varying height, by a printer configured to print a number of pass images on top of each other in a number of passes, the method comprising the steps of:
- defining an object image comprising height data for indicating a height of each pixel of the object image;
deriving from the object image a number of pass images to be printed on top of each other, comprising;
establishing pass pixels of the pass images for which pass pixels a pass pixel height is defined, wherein a sum of the defined heights of a sequence of pass pixels that corresponds to a respective pixel of the object image equals the height of that pixel of the object image; and
printing the pass images on top of each other, comprising;
varying an amount of printed material that is printed per printed pass pixel of a pass image in accordance with the defined pass pixel heights of the pass pixels,wherein said establishing of pass pixels comprises;
selecting, based on random data, pass pixel heights for pass pixels to be established from a respective set of at least two positive pass pixel heights.
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Accused Products
Abstract
A printing system and method of printing an object having a surface (36) of varying height, by a printer configured to print a number of pass images (1; 2; 3; . . . ) on top of each other in a number of passes, including: deriving (S12) from an object image a number of pass images (1; 2; 3; . . . ) to be printed on top of each other, including: establishing (S28; S40) pass pixels of the pass images for which pass pixels a pass pixel height is defined, wherein a sum of the defined heights of a sequence of pass pixels that corresponds to a respective pixel (A; B) of the object image equals the height of that pixel of the object image; and printing the pass images (1; 2; 3; . . . ) on top of each other. An amount of printed material that is printed per printed pass pixel is varied in accordance with the defined pass pixel heights. The pass pixels heights are selected S26), based on random data, from a respective set of at least two positive pass pixel heights.
14 Citations
12 Claims
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1. A method of printing an object on a support, said object having a surface of varying height, by a printer configured to print a number of pass images on top of each other in a number of passes, the method comprising the steps of:
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defining an object image comprising height data for indicating a height of each pixel of the object image; deriving from the object image a number of pass images to be printed on top of each other, comprising;
establishing pass pixels of the pass images for which pass pixels a pass pixel height is defined, wherein a sum of the defined heights of a sequence of pass pixels that corresponds to a respective pixel of the object image equals the height of that pixel of the object image; andprinting the pass images on top of each other, comprising;
varying an amount of printed material that is printed per printed pass pixel of a pass image in accordance with the defined pass pixel heights of the pass pixels,wherein said establishing of pass pixels comprises;
selecting, based on random data, pass pixel heights for pass pixels to be established from a respective set of at least two positive pass pixel heights. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A print system for printing an object on a support, said object having a surface of varying height, the print system being configured to print a number of pass images on top of each other in a number of passes, the print system comprising:
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a print controller; and a print engine, wherein the print controller is configured to; receive an object image comprising height data for indicating a height of each pixel of the object image; derive from the object image a number of pass images to be printed on top of each other, comprising;
establishing pass pixels of the pass images for which pass pixels a pass pixel height is defined, wherein a sum of the defined heights of a sequence of pass pixels that corresponds to a respective pixel of the object image equals the height of that pixel of the object image; andtransfer said pass images to the print engine, which is configured to print the pass images on top of each other in a predetermined order, comprising;
varying an amount of printed material that is printed per printed pass pixel of a pass image in accordance with the defined pass pixel heights of the pass pixels, andwherein said establishing of pass pixels comprises;
selecting, based on random data, pass pixel heights for pass pixels to be established from a respective set of at least two positive pass pixel heights. - View Dependent Claims (12)
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Specification