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The Development of a Static Electricity Actuated Inkjet Head for POS Printers

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A static electricity-actuated inkjet head, SEA inkjet head, has been developed for inkjet point-of-sale, or ‘POS,’ printers. This type of inkjet technology is different from the piezoelectric type. SEA inkjet technology makes possible smaller sized inkjet POS printers with faster print speeds, higher resolution graphics, more precise barcode, 2-color printing, and higher reliability than heretofore.

The SEA inkjet head is fabricated entirely by Micro-Electro-Mechanical Systems (MEMS) processes and its driving voltage is typically 26.5V. The electrostatic actuator comprises a silicon pressure plate and a corresponding transparent electrode parallel to the pressure plate. They are assembled precisely to keep the gap there between to be 180 nm. The ink firing of the SEA inkjet head is responsive to at least to 16 kHz. The durability of the actuator has been confirmed to be more than 10 billion actuations.

In this paper SEA inkjet technology is introduced. And its structure, ink ejection mechanism, fabrication process, driving method and characterizations are demonstrated.

Document Type: Research Article

Publication date: January 1, 2002

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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