Method of accommodating printing faults in a dot printing operation
View Patent ↗A method of accommodating printing faults includes the step of printing an array of dots to define an image. Defects are determined in the image. A portion of the dots in the array are printed to compensate for the defects in the image.
1. A method of printing an image, defined by an array of dots with an inkjet printer having a stationary pagewidth printhead to at least partially compensate for a malfunctioning printing nozzle of the printhead, the method including the steps of:
identifying the malfunctioning nozzle; and
increasing the size of the dots printed by at least some nozzles adjacent the malfunctioning nozzle so as to print said increased dots adjacent a dot position in the array of dots assigned to the malfunctioning nozzle thereby at least partially compensating for the malfunctioning nozzle in the printed image.
2. A method as claimed in claim 1 , in which the array of dots includes consecutive rows of dots, each row being printed by at least one respective nozzle.
3. A method as claimed in claim 2 , in which the at least some adjacent nozzles are used for adjusting the size of the dots at least adjacent to the row assigned to the malfunctioning nozzle.