Patent ID: 8684484

Claim:
An image forming method for use in an inkjet head including a pressure chamber filled with ink, a nozzle which communicates with the pressure chamber and in which a meniscus of the ink is formed, a piezoelectric element which pressurizes the pressure chamber, and a drive circuit which performs an operation of ejecting the ink in a printing state and generates a basic pulse for vibrating the meniscus in a non-printing state, the basic pulse being generated by turning off a voltage applied to the piezoelectric element for substantially the same period as a natural vibration period of the ink, the image forming method comprising the step of: generating an additional pulse at least once before or after the basic pulse when the basic pulse is generated by the drive circuit in the non-printing state, the additional pulse being generated by turning off the voltage applied to the piezoelectric element, wherein an interval between the basic pulse and the additional pulse is substantially equal to a rising period of a fluctuating voltage generated by the basic pulse.