Liquid discharging method, liquid discharging head, and head...

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/05 (2006.01) B41J 2/14 (2006.01) B41J 2/175 (2006.01) B41J 27/00 (2006.01)

Patent

CA 2244509

This specification discloses a liquid discharging method of discharging liquid from a discharge port for discharging the liquid by a liquid discharging element in a first liquid flow path communicating with the discharge port for supplying the liquid to the discharge port, characterized by the use of a variable member for causing negative pressure to act on the first liquid flow path. The specification also discloses a liquid discharging head having a discharge port for discharging liquid therethrough, a first bubble creating area for creating a first bubble in the liquid, and a first liquid flow path provided with the first bubble creating area and communicating with the discharge port, the liquid in the first liquid flow path being discharged through the discharge port by the creation of the first bubble, characterized by a second bubble creating area for creating a second bubble in the liquid, a second liquid flow path provided with the second bubble creating area, and negative pressure acting means using a variable member provided between the first liquid flow path and the second liquid flow path for causing only negative pressure to act in the first liquid flow path by the disappearance of the second bubble. The specification also discloses a head cartridge and a liquid discharging apparatus using such liquid discharging head.

Cette invention concerne une méthode de distribution de liquide par un orifice approprié alimenté par un premier passage au moyen d'un élément variable conçu pour créer une dépression dans ledit premier passage. Cette invention concerne une tête de distribution comportant un orifice de distribution, une première zone de création de bulles destinée à créer une première bulle dans le liquide et un premier passage intégrant ladite première zone de création de bulles et menant audit orifice de distribution, le liquide dans ce premier passage étant expulsé par l'orifice de distribution par la première bulle créée dans la première zone de création de bulles, une seconde zone de création de bulles destinée à créer une seconde bulle dans le liquide à distribuer, un second passage intégrant la seconde zone de création de bulles et un élément variable situé entre le premier et le second passages et destiné à créer une dépression dans le premier passage seulement par disparition de la seconde bulle. Cette invention concerne également une cartouche de tête de distribution et le dispositif de distribution de liquide équipé de cette cartouche.

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