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Improvement of Piezoelectric Ink Jet Printhead For Higher Throughput.

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A prototype of monolithic piezoelectric line ink jet printhead, which has 108 mm print width, was proposed at NIP21 by one of the authors. It enables variable volume drop ejection at 20 kHz frequency from 2,656 nozzles arranged in 108mm x 16.8mm area. And it achieved 600 dpi x 600 dpi single pass printing at 847 mm/s. Then, its' highest drive frequency was raised up to 24 kHz for faster printing (reported at NIP 23).Again, it is raised further up to 30 kHz by modifying ink viscosity as well as channel design. The latest model enables 600 dpi single pass printing at 1,269 mm/s with variable drop volumes between 5 and 12 pl. The drop velocity trend against firing frequency becomes more consistent up to 30 kHz. Also, drop deviation is improved for better image quality by modification with nozzle plane.

Document Type: Research Article

Publication date: 2009-01-01

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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