Abstract: A fluid ejection device comprising firing cells including a first group of firing cells and a second group of firing cells and control circuitry. The control circuitry is configured to respond to the control signal to selectively initiate a first sequence adapted to enable the first group of firing cells for activation and a second sequence adapted to enable the second group of firing cells for activation.

Abstract: A fluid ejection device having firing cells, signal lines configured to receive a series of pulses, and an address generator configured to receive pulses from the series of pulses and generate a set of address signals in response to the received pulses, wherein the set of address signals is adapted to enable the firing cells for activation.

Abstract: A fluid ejection device includes a first fire line adapted to conduct a first energy signal having energy pulses, a second fire line adapted to conduct a second energy signal having energy pulses, a first address generator configured to provide first address signals, a second address generator configured to provide second address signals, first drop generators and second drop generators. The first drop generators are electrically coupled to the first fire line and configured to respond to the first energy signal to eject fluid based on the first address signals. The second drop generators are electrically coupled to the second fire line and configured to respond to the second energy signal to eject fluid based on the second address signals.

Abstract: A device includes a substrate, a first gate, a second gate, and a third gate. The substrate has a first active region and a second active region. The first gate is configured in a first loop structure around the first active region. The second gate is configured in a second loop structure around the second active region, and the third gate is configured in a third loop structure around the first gate and the second gate.

Abstract: Embodiments of a fluid ejection device are disclosed.

Abstract: A fluid ejection device including firing cells including a first group of firing cells and a second group of firing cells, a control line configured to receive a control signal and control circuitry. The control circuitry is configured to respond to the control signal to selectively initiate a first sequence adapted to enable the first group of firing cells for activation and a second sequence adapted to enable the second group of firing cells for activation.

Abstract: A fluid ejection device having a first fluid feed source having a first fluid feed source edge in communication with a substrate surface, first firing resistors disposed along the first fluid feed source and configured to respond to a first current to heat fluid provided by the first fluid feed source, and a reference conductor. The reference conductor is configured to conduct the first current from the first firing resistors, wherein the reference conductor is disposed between the first fluid feed source edge and the first firing resistors.

Abstract: A fluid ejection device comprising firing cells including a first group of firing cells and a second group of firing cells and control circuitry. The control circuitry is configured to respond to the control signal to selectively initiate a first sequence adapted to enable the first group of firing cells for activation and a second sequence adapted to enable the second group of firing cells for activation.

Abstract: A fluid ejection device having firing cells, signal lines configured to receive a series of pulses, and an address generator configured to receive pulses from the series of pulses and generate a set of address signals in response to the received pulses, wherein the set of address signals is adapted to enable the firing cells for activation.

Abstract: A fluid ejection device having firing cells, signal lines configured to receive a series of pulses, and an address generator configured to receive pulses from the series of pulses and generate a set of address signals in response to the received pulses,. wherein the set of address signals is adapted to enable the firing cells for activation.

Abstract: A fluid ejection device comprising a first transistor having a first gate configured in a first loop structure, a second transistor having a second gate configured in a second loop structure, and a third transistor having a third gate configured in a third loop structure disposed around the first transistor. The second transistor and the third transistor share a first active region.

Abstract: A fluid ejection device comprising an identification line adapted to receive a program signal and a read signal and identification cells electrically coupled to the identification line. Each of the identification cells comprises a memory circuit and a memory element. The memory circuit is adapted to receive and respond to signals in order to selectively store a value in the memory circuit, which determines whether the identification cell is responsive to signals received on the identification line.

Abstract: Devices, methodologies, and other embodiments associated with fluid ejection devices are described. One exemplary embodiment includes a fluid ejection device that comprises a plurality of firing cells configured to eject fluid when activated. The firing cells can be grouped into firing groups of firing cells including a first fire group and a second fire group. A circuit can be provided that is configured to activate selected firing cells where the circuit is configured to respond to activation signals including a first fire pulse to activate the firing cells of the first fire group and a second fire pulse to activate the firing cells of the second fire group. The circuit can also be configured to activate the first fire group and the second fire group to eject fluid overlapping in time.

Abstract: A dynamic memory based integrated circuit ink jet firing cell that includes a heater resistor, a drive transistor, and a dynamic memory circuit for storing firing data only for such heater resistor. Also disclosed is an integrated circuit firing array that includes a plurality of dynamic memory based firing cells divided into a plurality of fire groups of firing cells, each fire group having a plurality of subgroups; data lines for providing energizing data to the firing cells; control lines for providing control information to the firing cells wherein all firing cells within a subgroup are connected to a common subset of the control lines so as to be controlled to concurrently store energizing data; and a plurality fire lines for supplying energizing energy to the firing cells, wherein all firing cells of a fire group receive energizing energy from only one fire line.

Abstract: A dynamic memory based integrated circuit ink jet firing cell that includes a heater resistor, a drive transistor, and a dynamic memory circuit for storing firing data only for such heater resistor. Also disclosed is an integrated circuit firing array that includes a plurality of dynamic memory based firing cells divided into a plurality of fire groups of firing cells, each fire group having a plurality of subgroups; data lines for providing energizing data to the firing cells; control lines for providing control information to the firing cells wherein all firing cells within a subgroup are connected to a common subset of the control lines so as to be controlled to concurrently store energizing data; and a plurality fire lines for supplying energizing energy to the firing cells, wherein all firing cells of a fire group receive energizing energy from only one fire line.

Abstract: A dynamic memory based integrated circuit ink jet firing cell that includes a heater resistor, a drive transistor, and a dynamic memory circuit for storing firing data only for such heater resistor. Also disclosed is an integrated circuit firing array that includes a plurality of dynamic memory based firing cells divided into a plurality of fire groups of firing cells, each fire group having a plurality of subgroups; data lines for providing energizing data to the firing cells; control lines for providing control information to the firing cells wherein all firing cells within a subgroup are connected to a common subset of the control lines so as to be controlled to concurrently store energizing data; and a plurality fire lines for supplying energizing energy to the firing cells, wherein all firing cells of a fire group receive energizing energy from only one fire line.

Abstract: A dynamic memory based integrated circuit ink jet firing cell that includes a heater resistor, a drive transistor, and a dynamic memory circuit for storing firing data only for such heater resistor. Also disclosed is an integrated circuit firing array that includes a plurality of dynamic memory based firing cells divided into a plurality of fire groups of firing cells, each fire group having a plurality of subgroups; data lines for providing energizing data to the firing cells; control lines for providing control information to the firing cells wherein all firing cells within a subgroup are connected to a common subset of the control lines so as to be controlled to concurrently store energizing data; and a plurality fire lines for supplying energizing energy to the firing cells, wherein all firing cells of a fire group receive energizing energy from only one fire line.

Abstract: A dynamic memory based integrated circuit ink jet firing cell that includes a heater resistor, a drive transistor, and a dynamic memory circuit for storing firing data only for such heater resistor. Also disclosed is an integrated circuit firing array that includes a plurality of dynamic memory based firing cells divided into a plurality of fire groups of firing cells, each fire group having a plurality of subgroups; data lines for providing energizing data to the firing cells; control lines for providing control information to the firing cells wherein all firing cells within a subgroup are connected to a common subset of the control lines so as to be controlled to concurrently store energizing data; and a plurality fire lines for supplying energizing energy to the firing cells, wherein all firing cells of a fire group receive energizing energy from only one fire line.

Abstract: A manufacturing method provides ink-jet writing engine modules for use with a compatible hard copy engine module, a hard copy apparatus based thereon, and methods of manufacturing, operation, and use. Fluidic and electronic partitioning for ink-jet hard copy apparatus is redefined. Modular separation of a hard copy engine from a writing engine allows a replaceable writing module containing all of the key elements of the ink-jet writing system based on writing system technology requirements, particularly for those most likely to age or fail as a result of time, frequency of use, or end-user actions.

Abstract: A dynamic memory based integrated circuit ink jet firing cell that includes a heater resistor, a drive transistor, and a dynamic memory circuit for storing firing data only for such heater resistor. Also disclosed is an integrated circuit firing array that includes a plurality of dynamic memory based firing cells divided into a plurality of fire groups of firing cells, each fire group having a plurality of subgroups; data lines for providing energizing data to the firing cells; control lines for providing control information to the firing cells wherein all firing cells within a subgroup are connected to a common subset of the control lines so as to be controlled to concurrently store energizing data; and a plurality fire lines for supplying energizing energy to the firing cells, wherein all firing cells of a fire group receive energizing energy from only one fire line.