Patent ID: 8367158
Filing Date: 2013-02-05
Classification: B41J

Abstract:
1. A method of forming a liquid-repellent film on a surface of a nozzle plate having nozzle apertures through which droplets of liquid are ejected, the method comprising: a nozzle plate preparation step of preparing a nozzle plate, at least a portion of a surface of the nozzle plate being made of a material containing silicon; a termination process step of carrying out one of a hydrogen termination process and a halogen termination process on the surface of the nozzle plate; and a liquid-repellent film formation step of forming a liquid-repellent film on the surface of the nozzle plate after the termination process step by bringing a liquid-repellent film raw material into contact with the surface of the nozzle plate while applying energy to the surface of the nozzle plate, each molecule constituting the liquid-repellent film raw material having an unsaturated carbon bond at an end and having a liquid-repellent functional group, the liquid-repellent film being bonded to the surface of the nozzle plate through silicon-carbon bonds.