Measurement of Smart Driver on Thermal Bubble Inkjet Printhead
Abstract:This paper describes the measurement of thermal inkjet driver chip has a number of uses in the technology: D-Flip Flop logic control circuit on printhead verify for addressing nozzles by de-multiplexer FPGA device pre-check, high voltage NMOS driver characteristic by HP4145B instrument, OES/ITRI setting design goals to monitor droplet orbit, the stream of frozen images was then acquired by a CCD camera, the evolution of droplet velocity for different time frames, droplet trajectory provides an overall picture of the droplet ejection trajectory, while the droplet ejection sequence provides the more detail evolution of droplet formation and ejection. Droplet properties, such as ejection speed, droplet size, directionality, satellite droplets, flying distance and frequency response, we introduce some of the data showing current trends in thermal inkjet performance and life. The droplet ejection of our multiplexer printhead with 12 um diameter diameter nozzle has been characterized at a frequency over 19.8 kHz, 5 pL of ejected droplet volume.
Document Type: Research Article
Publication date: January 1, 2004
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.
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