| abstract |
The application provides a kind of printing device, and this printing device includes: flow passage plate, and including pressure chamber, nozzle and groove, this nozzle includes outlet, and the ink accommodated in pressure chamber is sprayed by this outlet, and groove is arranged on around nozzle and this outlet extends in groove；Piezo-activator, for providing the pressure change ink for accommodating in ejection pressure chamber；And electrostatic actuator, provide electrostatic drive power for the ink accommodated in nozzle. |