Patent ID: 6234598
Filing Date: 2001-05-22
Classification: B41J

Abstract:
A printhead for an inkjet printer, comprising:a substrate;a plurality of heater resistors disposed on said substrate and electrically arranged into a first group and a second group;a first electrical conductor disposed on said substrate, coupled to each heater resistor in said first group, and terminating in a first terminal disposed on said substrate whereby electrical current is sourced to each heater resistor in said first group;a second electrical conductor disposed on said substrate, coupled to each heater resistor in said second group, and terminating in a second terminal disposed on said substrate whereby electrical current is sourced to each heater resistor in said second group; anda third electrical conductor disposed on said substrate, coupled to each heater resistor in both said first group and said second group, and terminating in third and fourth terminals disposed spaced apart from each other on said substrate whereby electrical current is returned to complete an electrical circuit.