Printing compensation
AssigneeHewlett-Packard Development Company, L.P.
InventorsJavier Castro Soriano, Ruben Recasens Oros, Jordi Bas Ferrer
Life of this patent
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Abstract
In an example, a method for compensating a misalignment introduced by a printing process comprises printing a plurality of first symbols onto a print media with a first printing liquid at spaced-apart locations on the print media, printing a plurality of second symbols onto the print media with a second printing liquid such that each second symbol overlaps a corresponding first symbol by a different symbol offset amount, identifying a first symbol and the corresponding second symbol, and the respective symbol offset amount, that represent a correct alignment between the plurality of first symbols and the plurality of second symbols, and adjusting a print parameter according to the identified symbol offset amount.
Claims15
A method for compensating a misalignment introduced by a printing process, comprising:
- printing a plurality of first symbols onto a print media with a first printing liquid at spaced-apart locations on the print media;
- printing a plurality of second symbols onto the print media with a second printing liquid such that each second symbol overlaps a corresponding first symbol by a different symbol offset amount;
- identifying a first symbol and the corresponding second symbol, and the respective symbol offset amount, that represent a correct alignment between the plurality of first symbols and the plurality of second symbols;
- and
- adjusting a print parameter according to the identified symbol offset amount.
A method, comprising:
- printing, with a first printhead, a plurality of first symbols onto a print media with a first printing liquid at spaced-apart locations on the print media;
- printing, with a second printhead, a plurality of second symbols onto the print media with a second printing liquid, each second symbol being offset relative to a corresponding first symbol by a different offset amount;
- identifying a first symbol and the corresponding second symbol, and the respective symbol offset amount, that represent a correct alignment between the plurality of first symbols and the plurality of second symbols;
- and
- adjusting a print parameter according to the identified symbol offset amount in order to compensate for misalignment between the print media and the first and second printheads that is introduced by the printing of the plurality of first symbols and/or the printing of the plurality of second symbols.
A printing system comprising:
- a first printhead to print a first printing liquid,
- a second printhead to print a second printing liquid, the second printhead being aligned with the first printhead, and
- a controller to cause:
- the first printhead to print a first plurality of symbols at spaced-apart locations on a print media using a first printing process, wherein the first printing process introduces misalignment between layers of printing liquid, and
- the second printhead to print a second of plurality of symbols using a second printing process such that each of the second plurality of symbols overlaps a corresponding symbol of the first plurality of symbols by a different symbol offset amount,
- wherein the controller is to adjust a print parameter of the first and/or second printing process according to a symbol offset amount of the symbol of the second plurality of symbols that represents a correct alignment between the first plurality of symbols and the second plurality of symbols.
Dependencies are inferred from the claim text.