Patent ID: 7198346

Claim:
An inkjet printhead which comprises: an ink distribution assembly for connection to an ink supply and defining a plurality of ink outlets; an array of printhead chips positioned on the ink distribution assembly, each printhead chip comprising: a substrate that defines a plurality of ink supply passages in fluid communication with respective ink outlets; an array of nozzle arrangements positioned on the substrate, each nozzle arrangement defining a nozzle chamber connected to an ink supply passage and a nozzle connected to the nozzle chamber; and a plurality of actuators displaceable relative to the substrate to eject ink from respective nozzles; and a plurality of feed back sense lines connected to each printhead chip for providing a controller with data representing operating characteristics of each printhead chip including temperature of the printhead chip, voltage available to each actuator, resistivity of a heater of each actuator, and a formed width of the heater of each actuator, the controller being configured to adjust timings of nozzle firing pulses in response to the fedback temperatures and to adjust pulse widths of the nozzle firing pulses in response to the fedback voltages, resitivities and widths.