A liquid droplet ejecting apparatus comprising: a liquid droplet ejecting head that includes a nozzle from which a liquid supplied from a liquid supply source through a liquid supply path is ejected as a liquid droplet, and is configured to eject the liquid droplet from the nozzle to a recording medium to perform a recording process; a maintenance unit that is configured to perform maintenance of the liquid droplet ejecting head; a first detecting section that is configured to detect a vibration waveform of a pressure chamber, which is vibrated when an actuator is driven to cause the pressure chamber communicating with the nozzle to vibrate, to detect a state inside the pressure chamber; a second detecting section that is configured to read a pattern formed on the recording medium by the liquid droplet ejecting head ejecting the liquid droplet from the nozzle to detect an ejection state of the liquid droplet; and a determination section that is configured to determine a replacement necessity of the liquid droplet ejecting head based on a detected result of the first detecting section and/or the second detecting section, and the determination section is configured to check that a function unit (268; 269; 35) disposed in the liquid supply path and the maintenance unit function normally, wherein the first detecting section is configured to detect the vibration waveform of the pressure chamber before the maintenance operation and is configured to detect the vibration waveform of the pressure chamber at a time of at least one of during the maintenance operation and after the maintenance operation, wherein the determination section is configured to determine that at least one of the function unit and the maintenance unit malfunctions in a case in which bubbles inside the pressure chamber are determined to be increased through the maintenance operation based on the vibration waveform detected by the first detecting section, wherein the determination section is configured to determine that replacement of the liquid droplet ejecting head is necessary in a case in which at least any one of an abnormality of the state inside the pressure chamber and an abnormality of the ejection state is detected by the first detecting section and the second detecting section, respectively, a predetermined number of times after the maintenance unit performs a maintenance operation, and wherein the determination section is configured to determine that replacement of the liquid droplet ejecting head is necessary after checking that the function unit and the maintenance unit function normally. a liquid droplet ejecting head that includes a nozzle from which a liquid supplied from a liquid supply source through a liquid supply path is ejected as a liquid droplet, and is configured to eject the liquid droplet from the nozzle to a recording medium to perform a recording process; a maintenance unit that is configured to perform maintenance of the liquid droplet ejecting head; a first detecting section that is configured to detect a vibration waveform of a pressure chamber, which is vibrated when an actuator is driven to cause the pressure chamber communicating with the nozzle to vibrate, to detect a state inside the pressure chamber; a second detecting section that is configured to read a pattern formed on the recording medium by the liquid droplet ejecting head ejecting the liquid droplet from the nozzle to detect an ejection state of the liquid droplet; and a determination section that is configured to determine a replacement necessity of the liquid droplet ejecting head based on a detected result of the first detecting section and/or the second detecting section, and the determination section is configured to check that a function unit (268; 269; 35) disposed in the liquid supply path and the maintenance unit function normally, wherein the first detecting section is configured to detect the vibration waveform of the pressure chamber before the maintenance operation and is configured to detect the vibration waveform of the pressure chamber at a time of at least one of during the maintenance operation and after the maintenance operation, wherein the determination section is configured to determine that at least one of the function unit and the maintenance unit malfunctions in a case in which bubbles inside the pressure chamber are determined to be increased through the maintenance operation based on the vibration waveform detected by the first detecting section, wherein the determination section is configured to determine that replacement of the liquid droplet ejecting head is necessary in a case in which at least any one of an abnormality of the state inside the pressure chamber and an abnormality of the ejection state is detected by the first detecting section and the second detecting section, respectively, a predetermined number of times after the maintenance unit performs a maintenance operation, and wherein the determination section is configured to determine that replacement of the liquid droplet ejecting head is necessary after checking that the function unit and the maintenance unit function normally.