Liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorsHiroyuki Hagiwara, Haruhisa Uezawa
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AssigneeSeiko Epson Corporation
InventorsHiroyuki Hagiwara, Haruhisa Uezawa
Estimating the term…
Provided is a liquid ejecting apparatus including a first temperature sensor for detecting ink temperature and a second temperature sensor for detecting ambient temperature of a liquid ejecting head, in which a controller for controlling discharge of the ink generates a driving signal including a discharge voltage which is used for, based on a temperature detected by the first temperature sensor, discharging ink droplets through nozzle openings and a fine-oscillation voltage which is used for finely oscillating meniscuses of the ink without discharging the ink droplets and corresponds to the discharge voltage. Furthermore, the controller sets a coefficient in accordance with a temperature difference between the ink temperature and the ambient temperature and controls an energy level of the fine oscillation by applying the fine-oscillation voltage, based on the coefficient. In addition, the controller causes the discharge voltage to be applied to a pressure generation unit corresponding to the nozzle openings through which the ink droplets are discharged and causes the fine-oscillation voltage to be applied to a pressure generation unit corresponding to the nozzle openings through which the ink droplets are not discharged.
A liquid ejecting apparatus that has a liquid ejecting head in which pressure in each pressure generation chamber is changed by each of a plurality of pressure generation units, and thus liquid in the pressure generation chamber is discharged, as liquid droplets, through nozzle openings and that has a controller including a driving signal generation unit which generates a driving signal used for operating the pressure generation units, the liquid ejecting apparatus comprising:
Dependencies are inferred from the claim text.