Printhead for ink jet printing apparatus

Details Printhead for ink jet printing apparatus Printhead for ink jet printing apparatus

G - Physics

01

D

101/96.022

G01D 15/18 (2006.01) B05B 7/06 (2006.01) B41J 2/025 (2006.01) F16K 1/00 (2006.01)

Patent

CA 1323244

PRINTHEAD FOR INK JET PRINTING APPARATUS Abstract of the Disclosure A printhead for ink jet printing comprising a front plate having a chamber therein for ink under pressure, ports extending from the chamber to the back face of the front plate, recesses in the back face, passages extending through the front plate from the recesses to its front face, the ends of the passages at the front face constituting orifices for delivery of ink onto a target surface moving past the front face, a flexible membrane held on the back face by a back plate, and members slidable in holes in the back plate releasably holding the membrane pressed against the back face of the front plate at the back ends of the ports to block flow of ink out of the back ends of the ports to the recesses and the passages and operable to release the membrane for flexing away from the back ends of the ports for delivery of ink.

611559

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