Double dotting for grain equalization
AssigneeHewlett-Packard Development Company, L.P.
InventorsRonald A. Askeland, Wayne M. Richard
Life of this patent
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Abstract
This invention relates to a method for grain equalization utilizing double dotting, comprising the steps of: determining a drop weight of each die in a multi-die printhead to print a given ink; determining the highest drop weight amongst all the dies; and determining a percentage of double dotting that is needed to substantially match a grain of the highest drop weight die.
Claims32
A method for grain equalization utilizing double dotting, comprising the steps of:
- determining a drop weight of each die in a multi-die printhead to print a given ink;
- determining the highest drop weight amongst all of the dies;
- and
- determining a percentage of double dotting that is needed to substantially match a grain of the highest drop weight die.
A method for grain equalization in a print job, comprising the steps of:
- determining an average drop weight of each die in a multi-die printhead to print a given ink;
- determining the highest drop weight amongst all of the dies;
- determining a percentage of double dotting that is needed to substantially match a grain of the highest drop weight die;
- printing a test pattern;
- and
- determining if a color density of the test pattern is satisfactory.
A program storage medium readable by a computer, tangibly embodying a program of instructions executable by the computer to perform method steps for grain equalization in a print job, comprising the steps of:
- determining an average drop weight of each die in a multi-die printhead to print a given ink;
- determining the highest drop weight amongst all of the dies;
- determining a percentage of double dotting that is needed to substantially match a grain of the highest drop weight die;
- and
- printing a test pattern.
A system for grain equalization in a print job, comprising:
- a determining means for determining an average drop weight of each die in a multi-die printhead to print a given ink;
- a determining means for determining the highest drop weight amongst all of the dies;
- a determining means for determining a percentage of double dotting that is needed to substantially match a grain of the highest drop weight die;
- a printing means for printing a test pattern.
Dependencies are inferred from the claim text.