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Test Pattern and Drop Tracing for Nozzle Healthy Diagnostic

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The Rayleigh instability dominates the behavior during the ink drop from jetting to forming. This paper developed a drop tracing methodology for observation the printing quality, identified the drop tail and its break-off period, satellite drop creation, drop volume variation, and jetting speed. After standard recovery cleaning process (spitting, suction, wiping, priming, etc.), the drop landing presentation and its remedy were characterized by a group of test patterns, and furthermore, to be analyzed the failure mode of the nozzles. The measurement method integrated the test pattern design, analysis algorithm and stroboscope scheme, it could automatically trace the historical changes of nozzles and the operation deterioration early warning is possible. Compare with some traditional inspection methods, like off-line auto optical inspection, high speed image capture, continuous tape-rolling dot analysis etc., this method can real-time operate and detect nozzle failure, help the operator revise processing procedure on-line.

Document Type: Research Article

Publication date: January 1, 2006

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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