Liquid ejecting method, liquid ejecting head, and liquid ejecting apparatus

A liquid ejecting head comprising:

• a nozzle which ejects a liquid;
• a pressure chamber which applies a pressure variation to the liquid in order to eject the liquid from the nozzle;
• a supply unit which communicates with the pressure chamber and supplies the liquid to the pressure chamber from a liquid storage chamber;
• and
• a vibration plate disposed opposite from the nozzle plate, the vibration plate including a laminate of a support substrate and an elastic member, the elastic member forming a portion of the pressure chamber, the supply unit, and the liquid storage chamber,
• wherein a length of the nozzle is in a range from 40 μm to 100 μm, and a diameter of the nozzle is more than 10 μm,
• an opening area of an opening of the nozzle on the side in which the liquid is ejected is 1/20 or more of an opening area of an opening of the supply unit, and
• a cross-sectional area of the pressure chamber in a direction transverse to a flow of the liquid from the supply unit is less than three times a cross-sectional area of the supply unit in the direction transverse to the flow of the liquid.

A liquid ejecting apparatus comprising:

• an ejection pulse generation unit which generates an ejection pulse;
• and
• a liquid ejection head which ejects a liquid from a nozzle formed in a nozzle plate, the liquid ejection head including:
• a pressure chamber which deforms a partitioning portion and applies a pressure variation to the liquid in order to eject the liquid from the nozzle;
• an element which deforms the partitioning portion by the degree according to a potential variation pattern of an applied ejection pulse;
• a supply unit which communicates with the pressure chamber and supplies the liquid to the pressure chamber from a liquid storage chamber;
• and
• a vibration plate disposed opposite from the nozzle plate, the vibration plate including a laminate of a support substrate and an elastic member, the elastic member forming a portion of the pressure chamber, the supply unit, and the liquid storage chamber,
• wherein a length of the nozzle is in a range from 40 μm to 100 μm, and a diameter of the nozzle is more than 10 μm,
• an opening area of an opening of the nozzle on the side in which the liquid is ejected is 1/20 or more of an opening area of an opening of the supply unit, and
• a cross-sectional area of the pressure chamber in a direction transverse to a flow of the liquid from the supply unit is less than three times a cross-sectional area of the supply unit in the direction transverse to the flow of the liquid.