Method and device for printing with error or fault correction
AssigneeHeidelberger Druckmaschinen AG
InventorMartin Greive
Life of this patent
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Abstract
A printing device for an ink-jet printing system includes at least one row of nozzles for overprinting a first process color, and a row of nozzles for overprinting a correction color. The correction color is different from the process color. A method of correcting failure of a nozzle in a print head of an ink-jet nozzle system is also provided.
Claims18
A printing device for an ink-jet printing system, comprising:
- at least one row of nozzles for overprinting a first process color;
- and
- a row of nozzles for overprinting a correction color being different from said row of nozzles for overprinting the first process color and the correction color being different from the first process color;
- and
- at least one nozzle of said row of nozzles for overprinting the correction color applying the correction color to an error location in a printed image caused by a failure of a corresponding nozzle of said row of nozzles for overprinting the first process color.
A method of correcting failure of a nozzle for overprinting a process color in a print head of an ink-jet nozzle system having a plurality of rows of nozzles, each assigned a respective process color, the method which comprises:
- detecting a failure of a nozzle for overprinting one of the process colors;
- and
- depositing a correction color different from the color of each of the process colors at a location of a fault on the printing material caused by the failure of the nozzle.
A method of correcting failure of a nozzle in a print head of an ink-jet nozzle system having a plurality of rows of nozzles, each assigned a respective process color, the method which comprises:
- detecting a failure of a nozzle for one of the process colors;
- and
- depositing a correction color different from the color of each of the process colors at a location of a fault on the printing material caused by the failure of the nozzle.
Dependencies are inferred from the claim text.