A printhead of a printer includes a nozzle plate having a first layer, a second layer, and an intermediate channel. The first layer can have at least one fluid chamber for holding an immiscible fluid, and a plurality of ejection fluid chamber for holding an ejection fluid. The second layer can have a plurality of ejection fluid nozzles, one ejection fluid nozzle being in fluid communication with one ejection fluid chamber. The intermediate channel can form a passage between the first layer and the second layer. Further, the intermediate channel is in fluid communication with the fluid chambers to carry the immiscible fluid from the fluid chambers towards each of the ejection fluid nozzles for forming a layer of the immiscible fluid over the ejection fluid chambers to maintain the printhead.