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Development of Drop-on-Demand Piezoelectric Line Inkjet Printhead

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The authors developed a drop on demand piezoelectric line inkjet printhead composed of a monolithic structure having resolution of a 600dpi in 4.25 inch print width. The printhead is provided with plural trapezoidal regions of 1-inch width approximately, in which parallel array of rhombic pressure chambers are arranged in matrix form. The trapezoidal regions are aligned in print width direction, with their oblique side facing each other, in order to set 2,656 nozzles communication with corresponding chambers, in an area of 4.25 × 0.66 inches. This monolithic structure allows easy elongation in print width just by increasing the number of trapezoidal regions. Power consumption was reduced to less than 1/10 of that of the former models per nozzle by modifications in configuration of a piezoelectric actuator and pressure chamber. Materials of the printhead were chosen to accept various fluid chemicals. The printhead showed the reliability of over 10 billion dots per nozzle at the endurance test. Full color images were obtained with a resolution of 600 × 600 dpi and 4 grade grayscale at a paper-feeding rate of 847 mm/sec by six printheads arranged in parallel, which corresponded with aqueous inks of different colors respectively.

Document Type: Research Article

Publication date: 2005-01-01

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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