(19)
(11) EP 0 764 534 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.09.1997 Bulletin 1997/38

(43) Date of publication A2:
26.03.1997 Bulletin 1997/13

(21) Application number: 96306775.6

(22) Date of filing: 18.09.1996
(51) International Patent Classification (IPC)6: B41J 2/16
(84) Designated Contracting States:
DE FR GB

(30) Priority: 19.09.1995 US 530867

(71) Applicant: SCITEX DIGITAL PRINTING, Inc.
Dayton, Ohio 45420-4099 (US)

(72) Inventors:
  • Vandagriff, Randy D.
    Beavercreek, Ohio 45430 (US)
  • Glueckert, Henry D.
    Huber Heights, Ohio 45424 (US)
  • Hill, Ronald J.
    Ohio 45385 (US)

(74) Representative: Hillier, Peter et al
Reginald W. Barker & Co., Chancery House, 53-64, Chancery Lane
London, WC2A 1QU
London, WC2A 1QU (GB)

   


(54) Method for manufacturing a fluid cavity in an ink jet print head


(57) A continuous ink jet printing system includes a resonator having an internal fluid cavity. An initial aperture is drilled through the internal fluid cavity. A wire electrical discharge machining process is then applied to the surface of the internal fluid cavity to achieve a desired aperture dimension. The final aperture can be honed to improve surface finish.






Search report