Patent ID: 6257690
Filing Date: 2001-07-10
Classification: B41J

Abstract:
A printer for printing rows and columns of ink dots onto a medium, the printer comprising:a scanning carriage for scanning across the medium;a printhead mounted on the scanning carriage, the printhead including a plurality of primitives, each primitive having a plurality of ink ejection elements for ejecting ink therefrom, said primitive having a primitive size defined by the number of ink ejection elements within the primitive;a primitive select circuit electrically coupled to the ink ejection elements of the primitives and including a plurality of primitive lines for energizing the ink ejection elements;an address select circuit electrically coupled to the ink ejection elements of the primitives and including a plurality of address lines for addressing the ink ejection elements, so that ink ejection elements located at a particular physical position within their respective primitives have the same address line; andan address line sequencer for setting a firing order in which the address lines are energized in a non-sequential firing order that reduces horizontal banding and vertical jaggedness.