FIELD: printing.
SUBSTANCE: ejection liquid head contains part of ejection port for liquid ejection, heat-generating element, energy impact cell, the channel communicating with energy impact cell and fluid supply port communicating with the channel. Part of ejection port contains the first part, communicating with atmosphere, and a second part having a lager cross-sectional area than the cross-sectional area of the first ejection port part; note that second ejection port part is located between the energy impact cell and first ejection port part. Center of the second ejection port part in the fluid supply direction from the fluid supply port to the energy impact cell is shifted from the center of the heat generating element to the far end of the energy impact cell in the direction of fluid supply. There is also proposed inkjet printing device containing liquid ejection head and element for the head fixing and liquid ejection method for printing.
EFFECT: invention improves durability of liquid ejection head and during operation ink ejected without leaving bubbles inside the nozzle.
10 cl, 17 dwg
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