Operating method for inkjet head

Details Operating method for inkjet head Operating method for inkjet head

2011-05-31

2011-05-31

Nguyen, Lam S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S005000, C347S011000

Reexamination Certificate

active

07950759

ABSTRACT:
A method of operating an inkjet head to eject ink droplets, for an inkjet head including a pressure chamber that is contracted and expanded in a particular period, including: decompression-operating the membrane, such that the volume of the pressure chamber is increased, in correspondence with the period in which the pressure chamber is expanded; compression-operating the membrane, such that the volume of the pressure chamber is decreased, in correspondence with the time point at which the pressure chamber is converted from an expanded state to a contracted state; decompression-operating the membrane, such that the volume of the pressure chamber is increased, in correspondence with the period in which the pressure chamber is contracted; and compression-operating the membrane, such that the volume of the pressure chamber is decreased, in correspondence with the time point at which the pressure chamber is converted from a contracted state to an expanded state.

REFERENCES:
patent: 6598950 (2003-07-01), Hosono et al.
patent: 6705696 (2004-03-01), Okuda et al.
patent: 2007/0002091 (2007-01-01), Kida et al.
patent: 2002-127418 (2002-05-01), None
patent: 2002-254632 (2002-09-01), None
patent: 2004-058300 (2004-02-01), None
patent: 2004-58300 (2004-02-01), None
Japanese Office Action issued Oct. 22, 2009 in corresponding Japanese Patent Application 2007-107277.
Japanese Office Action dated Mar. 8, 2011, issued in Japanese Patent Application No. 2007-107277.

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