Liquid drop emission unit, through the nozzle and the communication path which emit the liquid drop

摘要

PPROBLEM TO BE SOLVED: To provide a liquid droplet discharging unit which can suppress the increase in the viscosity of a liquid being present in a vicinity of a nozzle while suppressing the increase in the power consumption, and to provide a liquid droplet discharging head, and an image forming apparatus equipped with the liquid droplet discharging head. PSOLUTION: In an ejector 26, an ink is circulated by a circulation pump 48. In this case, a driving controlling section changes a pressure which is imparted to a liquid in a pressure chamber by applying a different reserve waveform to an actuator depending on the circulation amount of the ink which circulates in each ejector 28, and the meniscus of the nozzle is vibrated. Thus, by the application of the different reserve waveform to the driving element by the driving controlling section depending on the circulation amount of the ink, the increase in the viscosity of the ink being present in a vicinity of the nozzle 30 can be suppressed while suppressing the increase in the power consumption. PCOPYRIGHT: (C)2009,JPO&INPIT