Patent ID: 9327497
Filing Date: 2016-05-03
CPC Classification: B41J

Claim Text:
1. A liquid discharge apparatus configured to discharge liquid, comprising: a channel unit including: an actuator including: a signal supply unit configured to selectively supply a discharge driving signal and a non-discharge driving signal to the actuator, the discharge driving signal including a first voltage signal which drives the actuator to discharge the liquid from the discharge port, and the non-discharge driving signal including a plurality of second voltage signals each of which drives the actuator not to discharge the liquid from the discharge port; wherein each of the first voltage signal and the second voltage signals goes through a first state, a second state, and a third state in this order and goes back to the first state, the first state being a state in which a voltage between the first and second electrodes is kept at a predetermined voltage, the second state being a state in which the voltage between the first and second electrodes monotonically decreases from the predetermined voltage, the third state being a state in which the voltage between the first and second electrodes monotonically increases to the predetermined voltage; and the non-discharge driving signal is adjusted so that any two consecutive second voltage signals among the plurality of second signals satisfy a condition that:  where: