Ink jet recording apparatus

Details Ink jet recording apparatus Ink jet recording apparatus

2006-03-27

2009-12-01

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S009000, C347S012000

Reexamination Certificate

active

07625053

ABSTRACT:
An ink jet recording apparatus comprises an ink jet recording head in which a volume of a pressure chamber is caused to vary by deflecting actuators according to drive signals applied between an electrode formed in a pressure chamber (9c) from which ink is to be ejected and electrodes formed in two pressure chambers adjacent the former, and a drive signal generator that generates drive signals for driving the recording head in the time-divisional drive method. The drive signals are applied to electrodes formed in pressure chambers9a,9b,9d, and9e, from which ink is not to be ejected so that pressure vibrations derivatively generated in the adjacent pressure chambers9band9dare evenly dispersed to the pressure chambers9a,9b,9d, and9e. Thus, dropping of velocities of ink droplets that are subsequently ejected can be prevented and thereby printing quality can be improved.

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patent: 6273539 (2001-08-01), Suzuki
patent: 2003/0122889 (2003-07-01), Okuda
patent: 2004/0155915 (2004-08-01), Kitami et al.
patent: 1 036 660 (2000-09-01), None
patent: 2004-42414 (2004-02-01), None
patent: 2004-42414 (2004-02-01), None
Translation of JP 2004-042414.
U.S. Appl. No. 11/357,091, filed Feb. 21, 2006, Kusunoki et al.
U.S. Appl. No. 11/353,980, filed Feb. 21, 2006, Kusunoki et al.
European Search Report dated Feb. 23, 2007.

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