Harness, Dickey & Pierce, P.L.C.
Inkjet printing devices for reducing damage during nozzle maintenance
Provided is an inkjet printing device. The inkjet printing device includes a passage forming substrate having a plurality of pressure chambers and a nozzle substrate. The nozzle substrate includes a plurality of nozzle blocks extending in a first direction, a plurality of nozzles connected to the pressure chambers and penetrating the nozzle blocks, and a plurality of trenches. Each of the trenches is disposed in a second direction perpendicular to the first direction with respect to the nozzle blocks, recessed from a bottom surface of the nozzle blocks, and extends in the first direction.
Samsung Electronics Co., Ltd.
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Sung-gyu Young-ki Jin-Seok Seung-ho Joong-hyuk
Kang Hong Hong Lee Kim