Printer heads for mosaic printer units

Details Printer heads for mosaic printer units Printer heads for mosaic printer units

G - Physics

01

D

101/96.022

G01D 15/16 (2006.01) B41J 2/14 (2006.01)

Patent

CA 1090861

ABSTRACT OF THE DISCLOSURE A mosaic printing head has cast therein a number of hollow- cylindrical piezoelectrically operated drive elements, each of which surrounds a respective ink-jet passage in the head. Arranged between the inner wall of each drive element and its respective passage is a layer of material which is impervious to the ink used. Embedded in this layer is a metal spiral which forms one of the two electrodes required to connect the drive element to a source of electrical energy. The metal spiral resiliently engages the internal surface of the piezoelectric element and during casting serves to locate the element concentrically relative to the passage.

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