Patent ID: 6474763
Filing Date: 2002-11-05
Classification: B41J

Abstract:
A liquid-discharge control method, in which a bubble is generated by supplying a liquid with thermal energy by driving one of electrothermal transducers, and the liquid is displaced and discharged from a corresponding one of nozzles by causing the bubble to communicate with the atmospheric air, said method comprising:a detection step of detecting a temperature of a head where the electrothermal transducers and the nozzles are provided; an adjusting step of adjusting an energy of a driving signal for driving the electrothermal transducer so that a part of the liquid being displaced returns to the electrothermal transducer, based on the temperature detected in said detection step; and a recording step of discharging the liquid by driving the head using the driving signal having the adjusted energy adjusted in said adjusting step.