Small Dot Ion Print-Head
Abstract:A novel Ion head architecture is presented for high resolution Ionographic printing, with a spot size capability of ∼50 μm. This ion head is manufactured using electroforming technology to provide a unique discharge geometry including a controlled gap which may be tailored to the discharge. Experimental measurements confirm the advantage of this geometry in producing high current densities. An electroformed screen electrode is also provided to focus the ion beam on a small spot. Experiments using a novel knife edge technique validate the achievable spot size. A simplified numerical and analytical model based on Paschen's curve shows the effect of nozzle scaling on the charge that may be extracted a nozzle. The model also allows testing the effect of an optimized nozzle profile demonstrating its advantages for a small nozzle implementation. The knife edge tool is used to experiment with different discharge electrode nozzle sizes for a fixed screen electrode allowing selection of the most efficient combination.
Document Type: Research Article
Publication date: January 1, 2011
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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