NOZZLE FORMING MEMBER, ITS MANUFACTURING METHOD AND LIQUID JETTING HEAD

摘要

PROBLEM TO BE SOLVED: To provide a nozzle forming member which can remarkably improve print quality by preventing curved flying of liquid droplets, and its manufacturing method and a liquid jetting head. SOLUTION: In the nozzle forming member, the nozzle surface having a plurality of nozzles opened for ejecting liquid droplets is formed of a silicon mono-crystal substrate and has a surface roughness (Ra) of not more than 0.1μm at least at the opening peripheral edge of the nozzles. COPYRIGHT: (C)2006,JPO&NCIPI