Droplet-jetting apparatus with ink manifold which reduces cross-talk

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EP 1 780 018 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	20.06.2007 Bulletin 2007/25

(43)	Date of publication:
	02.05.2007 Bulletin 2007/18

(21)	Application number: 06022330.2

(22)	Date of filing: 25.10.2006

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International Patent Classification (IPC):

B41J 2/14^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK YU

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Priority:

26.10.2005 JP 2005311671

(71)	Applicant: Brother Kogyo Kabushiki Kaisha
	Nagoya-shi, Aichi-ken 467-8561 (JP)

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Inventors:

Takahashi, Yoshikazu Technology Planning & IP Dept.,
Nagoya-shi Aichi-ken 467-8562 (JP)
Kojima, Masatomo Technology Planning & IP Dept.,
Nagoya-shi Aichi-ken 467-8562 (JP)
Ishikawa, Hiroyuki Technology Planning & IP Dept.,
Nagoya-shi Aichi-ken 467-8562 (JP)
Ito, Masaharu Technology Planning & IP Dept.,
Nagoya-shi Aichi-ken 467-8562 (JP)
Hasegawa, Shin Technology Planning & IP Dept.,
Nagoya-shi Aichi-ken 467-8562 (JP)
Hara, Koichiro Technology Planning & IP Dept.,
Nagoya-shi Aichi-ken 467-8562 (JP)
Sekiguchi, Yasuhiro Technology Planning & IP Dept.,
Nagoya-shi Aichi-ken 467-8562 (JP)
Iriguchi, Akira Technology Planning & IP Dept.,
Nagoya-shi Aichi-ken 467-8562 (JP)

(74)	Representative: Hofer, Dorothea et al
	Prüfer & Partner GbR Patentanwälte Sohnckestrasse 12 81479 München 81479 München (DE)

(54)	Droplet-jetting apparatus with ink manifold which reduces cross-talk

(57) An ink-jet head includes pressure chambers (10) arranged in a row in a row-direction, and a manifold flow passage (50) communicated with the pressure chambers (10) and extending in the row-direction. An ink inflow port (9) is formed at one end of the manifold flow passage. The manifold flow passage has a main portion (51), a connecting portion (52), and an extended portion (53) which are arranged in this order from a side close to the ink inflow port. The manifold flow passage is communicated with the pressure chambers (10) at the main portion (51). The main portion (51) has a constant cross-sectional area greater than that of the connecting portion (52). A cross-sectional area of the extended portion (53) is greater than that of the connecting portion (52). The pressure wave, generated in the pressure chamber (10) and propagated to the manifold flow passage, can be efficiently attenuated by the manifold flow passage (50) constructed as described above.