Inkjet status monitoring using meniscus measurement
Abstract:Meniscus motion measurement techniques have been developed such that the jetting condition in a piezo inkjet head can be monitored. Acquired CCD camera images, where a strobe light from an LED (Light Emitting Diode) was synchronized by the jetting signal, were used to measure the meniscus motion. For efficient image processing of the acquired images, a straight line near the nozzle in the jetting direction was used for defining the ROI (Region of Interest). Then, the meniscus location can be identified from the discontinuity that exists in the pixel intensities along the ROI in the image. Finally, it was shown from the experimental results that the measured meniscus can predict jetting behavior without actual jetting.
Document Type: Research Article
Publication date: January 1, 2008
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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