PURPOSE: To prevent emission deficiency or the lowering of a specific grade caused by such a phenomenon that solid matter formed by the evaporation of an ink component is pushed in a nozzle from an emitting orifice when the emitting orifice forming surface of an ink jet head is wipen with a cleaning blade.

CONSTITUTION: A water repelling area l is provided in the vicinity of the periphery of the emitting orifices 4 of an emitting orifice forming surface 11 and a hydrophilic area 6 is partially provided to the area separated from the emitting orifices 4 only on the downstream side of a wiping direction in adjacent relation to the water repelling area 1 and liquid passage planning communicating with the emitting orifices 4 is improved.