Jet and method thereof for ejecting droplets of different sizes
A jet, and a method thereof, use bubbles as virtual valves to eject droplets of different sizes. The jet is in fluid communication with a reservoir and has a substrate, an orifice layer, first nozzles, and second nozzles. The substrate has a manifold for receiving ink from the reservoir. The orifice layer is positioned on the top of the substrate to form first chambers and second chambers. First orifices of the first nozzles and second orifices of the second nozzles are formed on the orifice layer. The jet has at least one of following characteristics: (a) the first chambers are larger than the second chambers; (b) an interval between two heating units of the first nozzle is larger than an interval between two heating units of the second nozzle; and (c) the apertures of the first orifices are larger than the apertures of the second orifices.
BenQ Corporation
B B B B
B41J B41J B41J B41J
inventional additional inventional additional
Chung-Cheng Tsung-Ping Wei-Lin In-Yao Hung-Sheng
Chou Hsu Chen Lee Hu