Ink jet printer with resistance compensation circuit

A printer comprising:

• a main printer assembly including printer electronics, a media carrier, and a printhead carrier, the printer electronics for producing power signals, control signals and data signals, the data signals corresponding to an object to be printed;
• a circuit connected to receive the power signals, control signals and data signals from the printer electronics;
• a printhead mounted on the printhead carrier and connected to the circuit for receiving the power signals, the control signals and the data signals;
• a plurality of ink ejectors disposed in the the printhead for ejecting ink when actuated;
• a printhead control circuit disposed in the printhead for receiving at least the data signals,
• logic in the printhead control circuit for receiving at least the data signals and producing printhead command signals based on the data signals;
• a power circuit for actuating the ink ejectors in response to the printhead command signals, the power circuit including a plurality of compensation circuits for receiving the printhead command signals, each ink ejector being associated with a single one of the compensation circuits, each of the compensation circuits at least first and second switches that are connected in parallel with each other, each of the switches in a single one of the compensation circuits being connected to actuate a single associated one of the ink ejectors when the switch is turned on, each of the compensation circuits being responsive to the printhead command signals to actuate either the first switch or the first and second switch in the compensation circuit to actuate the associated ink injector and eject the ink.

A printer for printing objects comprising:

• a main printer assembly including printer electronics, a media carrier, and a printhead carrier, the printer electronics for producing M number of power signals, control signals and data signals, the data signals corresponding to one of the objects to be printed and being configured in a plurality of address dimensions, the data signals including at least Y number of first dimension signals and Z number of a second dimension signals,
• a circuit connected to receive the power signals, control signals and data signals from the printer electronics;
• a printhead mounted on the printhead carrier and connected to the circuit for receiving the power signals, the control signals and the data signals;
• a plurality of ink ejectors disposed in the the printhead for ejecting ink, each ink ejector being uniquely identified with a unique combination of the power signals, the first dimension signals and the second dimension signals, each power signal being associated with and providing power to a unique group of ejectors;
• a printhead control circuit disposed in the printhead for receiving at least the data signals,
• logic in the printhead control circuit for receiving at least the data signals and producing printhead command signals based on the data signals;
• a power circuit for actuating the ink ejectors in response to the printhead command signals, the power circuit including a plurality of compensation circuits for receiving the printhead command signals, each ink ejector being associated with a single one of the compensation circuits, each of the compensation circuits including X number of switches that are connected in parallel with each other, each switch in a single compensation circuit being connected to actuate a single associated ink ejector when the switch is turned on, each compensation circuit being responsive to the printhead command signals to actuate a number of switches in the compensation circuit to actuate the associated ink injector and eject the ink.