Ink jet printer

Details Ink jet printer Ink jet printer

2005-12-14

2009-08-25

Meier, Stephen D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S058000, C347S071000

Reexamination Certificate

active

07578581

ABSTRACT:
An ink jet printer is provided with an ink jet head. The ink jet head includes an ink passage body and an actuator. The ink passage body includes a nozzle, an ink chamber communicating with the nozzle, and a pressure chamber located between the nozzle and the ink chamber. The actuator includes a piezoelectric element facing the pressure chamber. The piezoelectric element includes a piezoelectric layer, a first electrode connected with a front face of the piezoelectric layer, a second electrode connected with a back face of the piezoelectric layer, and a first insulator located between the second electrode and the ink passage body. The ink jet printer further includes a device for maintaining the electric potentials of the ink passage body and the second electrode such that the electric potential of the ink passage body is equal to or below the electric potential of the second electrode.

REFERENCES:
patent: 6547376 (2003-04-01), Watanabe et al.
patent: 6672715 (2004-01-01), Isono et al.
patent: 2002/0003560 (2002-01-01), Isono et al.
patent: 2002/0196315 (2002-12-01), Isono et al.
patent: 2003/0156167 (2003-08-01), Sakaida et al.
patent: 2004/0218018 (2004-11-01), Sakaida et al.
patent: 2005/0185028 (2005-08-01), Sakaida et al.
patent: 2006/0164476 (2006-07-01), Watanabe et al.
patent: 2006/0284939 (2006-12-01), Katayama
patent: 2006/0284940 (2006-12-01), Katayama
patent: 0925923 (1996-06-01), None
patent: 1 336 494 (2003-08-01), None
patent: 1336494 (2003-08-01), None
patent: 1338421 (2003-08-01), None
patent: 1372199 (2003-12-01), None
patent: 1393906 (2004-03-01), None
patent: S61-079669 (1986-04-01), None
patent: 11 198371 (1999-07-01), None
patent: 2001309672 (2001-02-01), None
patent: 2001 260353 (2001-09-01), None
patent: 2003-053982 (2003-02-01), None
patent: 2003-080709 (2003-03-01), None
patent: 2003 94653 (2003-04-01), None
European Search Report (3 pages) for counterpart European patent application.
State Intellectual Property Office, Notification of First Office Action in Chinese Patent Appl'n No. 200610093814.X mailed Feb. 15, 2008.
State Intellectual Property Office, Notification of First Office Action in Chinese Patent Appl'n No. 200610093815.4 mailed Feb. 15, 2008.
United States Patent and Trademark Office, Office Action dated Jul. 29, 2008 in U.S. Appl. No. 11/302,521.
Japan Patent Office, Notification of Reasons for Rejection mailed Sep. 24, 2008, in Patent Application No. JP 2005-179415 (counterpart to Patent Publication No. US 2006/0284939 A1).
European Patent Office, European Search Report mailed Dec. 6, 2006, in Patent Application No. EP 06012513 (counterpart to Patent Publication No. US 2006/0284939 A1).
European Patent Office, European Search Report mailed Sep. 25, 2006, in Patent Application No. EP 06012514 (counterpart to Patent Publication No. US 2006/0284940 A1).
U.S. Patent and Trademark Office, Office Action in co-pending U.S. Appl. No. 11/425,215, Notification Date May 19, 2009.
U.S. Patent and Trademark Office, Office Action in co-pending U.S.Appl. No. 11/425,199, Notification Date Apr. 17, 2009.

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