Ejection device

An ejection device, comprising:

• a discharger that discharges a droplet on an object;
• a motor that moves the discharger;
• an imaging device that captures an image of the object;
• and
• a controller that:
• controls the discharger and the motor;
• and
• receives the captured image from the imaging device,
• wherein the discharger outputs a position adjusting mark on the object before discharging the droplet on the object,
• wherein the controller adjusts a discharge position of the droplet based on the captured image of the object with the position adjusting mark,
• wherein a reference mark on a housing of the ejection device is provided in an imaging range for the captured image of the object and outside a print area of the discharger,
• wherein the controller detects a displacement amount of distance between the position adjusting mark and the reference mark shown on the captured image of the object, and
• wherein the controller adjusts the discharge position based on the displacement amount.