Method and apparatus for ink jet print head nozzle plate...

Details Method and apparatus for ink jet print head nozzle plate... Method and apparatus for ink jet print head nozzle plate...

2006-02-28

2006-02-28

Hsieh, Shih-Wen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07004559

ABSTRACT:
The present invention provides a method of non-contact, ink jet print head nozzle plate surface cleaning. The method disclose, enables simultaneous non-contact cleaning of all nozzles of a print head nozzle plate having a major and minor dimension and ink ejecting nozzles spanning most of the major dimension. The simultaneous non-contact cleaning of all nozzles of the print head is achieved by providing a print head cleaning arrangement having a pressurized air flow emerging from an air exit slit of length exceeding nozzle plate major dimension.

REFERENCES:
patent: 4591873 (1986-05-01), McCann et al.
patent: 4970535 (1990-11-01), Oswald et al.
patent: 5184147 (1993-02-01), MacLane et al.
patent: 5493319 (1996-02-01), Hirabayashi et al.
patent: 6196657 (2001-03-01), Hawkins et al.
patent: 6497472 (2002-12-01), Sharma et al.

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