Patent ID: 7832824
Filing Date: 2010-11-16
Classification: B41J

Abstract:
1. A method for printing input digital images using an inkjet printing system having a printhead that moves laterally in reciprocating fashion along a scan axis, the printhead including first and second drop ejector arrays for ejecting drops of a particular ink wherein a first ink path supplying the first drop ejector array is characterized by a first length projection along the carriage scan axis; and a second ink path supplying the second drop ejector array is characterized by a second length projection along the carriage scan axis, the first length projection being shorter than the second length projection, the method comprising: a) printing a first combined number of ink dots of the particular ink on a recording medium using the first and second drop ejector arrays during a first time interval where the printhead is accelerating from a stopped position; b) printing a second combined number of ink dots of the particular ink on the recording medium using the first and second drop ejector arrays during a second time interval where the printhead is moving at a substantially constant velocity, wherein the percentage of ink dots that are printed by the second drop ejector array is between 40% and 80% of the second combined number of ink dots; and c) printing a third combined number of ink dots of the particular ink on a recording medium using the first and second drop ejector arrays during a third time interval where the printhead is decelerating to a stopped position, and further wherein the percentage of ink dots that are printed by the second drop ejector array is less than 40% of the corresponding combined number of ink dots in at least one of the first or third time intervals.