Patent ID: 8313160
Filing Date: 2012-11-20
Classification: B41J

Abstract:
1. A liquid ejecting apparatus comprising: a liquid ejecting head including a nozzle that ejects a liquid, a pressure chamber that communicates with the nozzle, and a pressurizing unit that causes a pressure change in a liquid within the pressure chamber, the liquid ejecting head being capable of ejecting the liquid from the nozzle as a result of an operation performed by the pressurizing unit; and a driving signal generation unit that generates a driving signal including an ejection driving pulse for driving the pressurizing unit and causing the liquid to be ejected from the nozzle, the liquid ejecting apparatus causing liquid droplets to be ejected from the nozzle and land upon a landing target while moving the landing target and the liquid ejecting head relative to each other using the movement unit, wherein the driving signal generation unit generates a leading driving pulse that is ahead in a unit cycle and a following driving pulse that follows the leading driving pulse; the leading driving pulse is set so that, in the case where liquid droplets are ejected simultaneously from multiple adjacent nozzles, the flight speed of the ejected liquid droplets located toward the central area in a nozzle row direction is higher than the flight speed of the ejected liquid droplets located toward the end areas in the nozzle row direction; and the following driving pulse is set so that, of the liquid droplets simultaneously ejected from the multiple adjacent nozzles, the flight speed of the ejected liquid droplets located toward the end areas is higher than the flight speed of the liquid droplets located toward the central area.