Multi-chamber fluid supply

(19)

(11)

EP 0 956 960 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	02.02.2000 Bulletin 2000/05

(43)	Date of publication A2:
	17.11.1999 Bulletin 1999/46

(21)	Application number: 99303333.1

(22)	Date of filing: 28.04.1999

(51)	International Patent Classification (IPC)⁷: B41J 2/175

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

29.10.1998 US 183538
29.04.1998 US 69717
29.04.1998 US 69616

(71)	Applicant: HEWLETT-PACKARD COMPANY
	Palo Alto, California 94304-1181 (US)

(72)	Inventors:
	Hickman, Mark S. Vancouver, WA 98684 (US) Askeland, Ronald A. San Diego, CA 92129 (US)

(74)	Representative: Colgan, Stephen James
	CARPMAELS & RANSFORD 43 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)

(54)	Multi-chamber fluid supply

(57) In accordance with the invention, an ink-jet printing system and fluid supply configuration are disclosed that utilize the advantages of reactive fluids while allowing for maximum flexibility in the design and architecture of the ink-jet printing system. The ink-jet printing apparatus comprises a printhead portion having at least one integral printhead portion, the printhead portion having at least two ejector portions; and at least one reservoir portion associated with the printhead portion, the reservoir portion having at least two reservoir chambers, each reservoir chamber for providing fluid to one of the at least two ejector portions, one of the chambers including a reactant fluid and the other chamber including at least one ink nonreactive with the reactant fluid.

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