Patent ID: 6582042
Filing Date: 2003-06-24
Classification: B41J

Abstract:
An inkjet printing system comprising:an inkjet printhead having drop generators and a plurality of electrical contacts the plurality of electrical contacts including address contacts, enable contacts, and drive current contacts, wherein the drop generators are organized in a plurality of groups of drop generators with each of the plurality of groups of drop generators connected to a different drive current contact and wherein each of the plurality of groups of drop generators includes subgroups of drop generators and each subgroup of drop generators within the group of drop generators is connected to a different address contact of the plurality of address contacts; a printing device having a plurality of electrical contacts including address contacts, enable contracts and drive current contacts, the plurality of electrical contacts configured to establish electrical contact with corresponding electrical contacts on the inkjet printhead upon insertion of the inkjet printhead into the printing device; wherein the printing device provides periodic address signals to the address contacts and periodic enable signals to the enable contacts and wherein the printing device selectively applies drive current based on image descriptions to the drive current contacts; and wherein the printhead is responsive to periodic signaling from each of the address and enable signals and wherein the printhead is responsive to the selective application of drive current to selectively eject ink from the printhead to form images on print media.