Ink container cartridge and manufacturing method therefor

(19)

(11)

EP 0 498 117 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	21.10.1992 Bulletin 1992/43

(43)	Date of publication A2:
	12.08.1992 Bulletin 1992/33

(21)	Application number: 91311330.4

(22)	Date of filing: 05.12.1991

(51)	International Patent Classification (IPC)⁵: B41J 2/175

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30)

Priority:

10.12.1990 JP 409958/90

(71)	Applicant: CANON KABUSHIKI KAISHA
	Tokyo (JP)

(72)	Inventors:
	Ujita, Toshihiko, c/o Canon Kabushiki Kaisha Ohta-ku, Tokyo (JP) Matsumoto, Haruyuki, c/o Canon Kabushiki Kaisha Ohta-ku, Tokyo (JP)

(74)	Representative: Beresford, Keith Denis Lewis et al
	BERESFORD & Co. 2-5 Warwick Court High Holborn London WC1R 5DJ London WC1R 5DJ (GB)

(56)

References cited: :

(54)	Ink container cartridge and manufacturing method therefor

(57) An ink container cartridge (27) includes an ink containing portion; a plug (342) for being pierced by a hollow needle (314); a device for preventing reverse flow of the ink to the containing portion, the preventing device comprising a valve (361), a first liquid passage in which the valve is movable and a second passage disposed closer to the ink containing portion than the first passage, and the valve (361) is capable of closing the second passage.

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