Printhead alignment correction
AssigneeHewlett-Packard Development Company, L.P.
InventorsAntonio Gracia Verdugo, Barret Kammerzell, Joan Albert Jorba Closa
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Abstract
Herein, techniques are described for printing an image on a print media by operation of a printhead to eject a print fluid over the print media. In at least some examples, a printhead temperature parameter is acquired, the parameter being indicative of a temperature at the printhead during printing; alignment of the printhead is corrected based on the printhead temperature parameter; printing is performed on the print media via the printhead according to the corrected alignment.
Claims15
A method for printing an image on a print media by operation of a printhead to eject a print fluid over the print media, comprising:
- acquiring a printhead temperature parameter indicative of a temperature at the printhead during printing;
- correcting alignment of the printhead based on the printhead temperature parameter;
- and
- printing on the print media via the printhead according to the corrected alignment.
An inkjet printer for printing an image on a print media by operation of a printhead, the printer comprising:
- a controller to control the printhead to print an image portion by causing, during printing the image:
- acquisition of a printhead temperature parameter indicative of a temperature at the printhead;
- correction of alignment of the printhead with respect to the print media based on the acquired printhead temperature parameter;
- and
- printing the image portion by actuation of the printhead according to the corrected alignment.
A computer software product comprising a tangible medium readable by a processor, the medium having stored thereon a set of instructions for operating a printer for printing an image by operation of a printhead, the instructions comprising:
- a set of instructions which, when loaded into a memory and executed by the processor, causes initializing alignment of the printhead based on an alignment setting;
- a set of instructions which, when loaded into a memory and executed by the processor, causes acquiring of a printhead temperature parameter indicative of a temperature at the printhead;
- a set of instructions which, when loaded into a memory and executed by the processor, causes validating alignment settings against the acquired printhead temperature parameter;
- a set of instructions which, when loaded into a memory and executed by the processor, causes, modifying the alignment setting according to the validating;
- and
- a set of instructions which, when loaded into a memory and executed by the processor, causes printing the image portion according to the modified alignment setting.
Dependencies are inferred from the claim text.