Printhead integrated circuit with more than 10000 nozzles
First Claim
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1. A printhead integrated circuit for an inkjet printhead, the printhead integrated circuit comprising:
- a monolithic wafer substrate supporting an array of droplet ejectors for ejecting drops of printing fluid onto print media, each drop ejector having a nozzle and an actuator for ejecting a drop of printing fluid through the nozzle and the array having more than 10000 of the droplet ejectors;
wherein,the actuators are arranged in adjacent rows, each having electrodes spaced from each other in a direction transverse to the rows for connection to respective drive transistors and a power supply, the electrodes of the actuators in adjacent rows having opposing polarities such that the actuators in adjacent rows have opposing current flow directions.
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Abstract
A printhead integrated circuit having a monolithic wafer substrate supporting an array of droplet ejectors for ejecting drops of printing fluid onto print media. Each drop ejector has a nozzle and an actuator for ejecting a drop of printing fluid through the nozzle. The array has more than 10000 of the droplet ejectors so that it provides a high nozzle pitch and the printhead has a very high ‘true’ print resolution—i.e. the high number of dots per inch is achieved by a high number of nozzles per inch.
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Citations
17 Claims
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1. A printhead integrated circuit for an inkjet printhead, the printhead integrated circuit comprising:
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a monolithic wafer substrate supporting an array of droplet ejectors for ejecting drops of printing fluid onto print media, each drop ejector having a nozzle and an actuator for ejecting a drop of printing fluid through the nozzle and the array having more than 10000 of the droplet ejectors;
wherein,the actuators are arranged in adjacent rows, each having electrodes spaced from each other in a direction transverse to the rows for connection to respective drive transistors and a power supply, the electrodes of the actuators in adjacent rows having opposing polarities such that the actuators in adjacent rows have opposing current flow directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification