Abstract
Abstract The nozzle design for a colour ink-jet print head using Hertz's continuous ink-jet method is described. A multiple jet implementation with eight jets per colour is developed by using silicon nozzle array plates manufactured by micromachining. Three different arrays have been tested in terms of directionality and clogging. In the final design, the orifices are formed as conical piles, in order to lengthen the effective channel and to reduce the surface wetting.
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