Printer controller with dead nozzle compensation
AssigneeSilverbrook Research Pty Ltd
InventorsSimon Walmsley, Richard Plunkett
Life of this patent
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Abstract
A printer controller able to compensate for inoperative or dead nozzles in a printhead. The printhead includes a plurality of sets of nozzles for printing a corresponding plurality of channels of dot data. The printhead is operated or controlled by the printer controller able to determine one or more operative nozzles capable of printing a dot on print media near a position at which the inoperative nozzle would have printed a dot had it been operative. The printer controller may also compensate for an inoperative nozzle in the printhead by using color redundancy.
Claims15
A printer controller able to compensate for an inoperative nozzle in a printhead, the printhead including a plurality of sets of nozzles for printing a corresponding plurality of channels of dot data, the printhead operated by the printer controller which is able to determine one or more operative nozzles capable of printing a dot on a print media near a position at which the inoperative nozzle would have printed a dot had it been operative.
Dependencies are inferred from the claim text.