Patent ID: 9205653
Filing Date: 2015-12-08
Classification: B41J

Abstract:
1. A nozzle plate comprising: a nozzle substrate comprising nozzle holes through which droplets are ejected; and a layer comprising a compound having a perfluoro polyether skeleton in a molecule of the compound, the layer being formed on the nozzle substrate on a side on which the droplets are ejected, wherein a surface of the layer comprising the compound having the perfluoro polyether skeleton in a molecule of the compound has an X-ray Photoelectron Spectroscopy (XPS) spectrum ascribable to oxygen atoms such that a ratio of an area of peak 1 to an area of peak 2 ranges from 0.35 to 0.45, where the peak 1 represents peaks observed between 534 eV and 540 eV and the peak 2 represents peaks observed between 528 eV and 534 eV among peaks between 528 eV to 540 eV.