Patent ID: 7316465
Filing Date: 2008-01-08
Classification: B41J

Abstract:
1. A liquid discharge apparatus which discharges liquid from an orifice of a nozzle portion, comprising: a nozzle-portion heating device which heats the nozzle portion; and a nozzle heating control device which controls a heating timing by the nozzle-portion heating device in accordance with a discharge drive timing for discharging the liquid from the orifice of the nozzle portion; a computing device which calculates a temperature rising time needed to bring a viscosity of the liquid inside the nozzle portion to a predetermined value or less according to temperature dependency characteristics of the viscosity of the liquid to be discharged and temperature rise characteristics of the liquid inside the nozzle portion; and a timing setting device which sets a drive timing of the nozzle-portion heating device in accordance with the temperature rising time calculated by the computing device.