Method of ink suction in ink jet printer

(19)

(11)

EP 0 732 210 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	07.01.1999 Bulletin 1999/01

(43)	Date of publication A2:
	18.09.1996 Bulletin 1996/38

(21)	Application number: 96301187.9

(22)	Date of filing: 22.02.1996

(51)	International Patent Classification (IPC)⁶: B41J 2/165

(84)	Designated Contracting States:
	DE FR GB

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Priority:

14.03.1995 KR 9505257

(71)	Applicant: Samsung Electronics Co., Ltd.
	Suwon-City, Kyungki-do 441-742 (KR)

(72)	Inventor:
	Lee, Jae-han Suwon-city, Kyungki-do (KR)

(74)	Representative: Musker, David Charles et al
	R.G.C. Jenkins & Co. 26 Caxton Street London SW1H 0RJ London SW1H 0RJ (GB)

(54)	Method of ink suction in ink jet printer

(57) A method of adjusting an ink suction amount in an ink jet printer includes the steps of: determining an ink suction amount according to a printing state; and sucking the ink from a head according to the determination. Therefore, since the ink is sucked by moving the piston as much as a predetermined distance according to the clogging state of the nozzle, unnecessary consumption of the ink can be prevented. Simultaneously, since the piston only moves to the predetermined position, a suction time can also be curtailed. Thus, the ink cartridge life can be extended, and work efficiency can be improved as a recovery time to a normal state from the clogged state is reduced.

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