Liquid discharge apparatus, liquid discharge method, and non-transitory recording medium

A liquid discharge apparatus, comprising:

• a discharge device to discharge a liquid curable by active-energy rays onto a discharge target to form a liquid discharge surface;
• an irradiator to irradiate the liquid discharge surface with the active-energy rays;
• a carriage mounting the discharge device and the irradiator, the carriage to move in a main-scanning direction;
• and
• circuitry configured to:
• relatively move the carriage and the discharge target in the main-scanning direction;
• relatively move the carriage and the discharge target in a sub-scanning direction perpendicular to the main-scanning direction;
• and
• control illuminance of the active-energy rays emitted from the irradiator to the liquid discharge surface on the discharge target according to a length of a discharge range of the liquid discharge surface on the discharge target in the main-scanning direction, wherein
• the circuitry decreases an irradiation intensity of the active-energy rays emitted from the irradiator to the liquid discharge surface with an increase in the length of the discharge range in the main-scanning direction.

A liquid discharge method for discharging a liquid onto a discharge target, the liquid discharge method comprising:

• discharging a liquid curable by active-energy rays onto the discharge target to form a liquid discharge surface;
• irradiating, with an irradiator, the liquid discharge surface with the active-energy rays;
• moving a discharge position of the liquid onto the discharge target in a main-scanning direction;
• moving the discharge position in a sub-scanning direction perpendicular to the main-scanning direction;
• and
• controlling illuminance of the active-energy rays emitted to the liquid discharge surface on the discharge target according to a length of a discharge range of the liquid discharge surface on the discharge target in the main-scanning direction, wherein
• the controlling the illuminance includes decreasing the illuminance of the active-energy rays emitted from the irradiator to the liquid discharge surface with an increase in the length of the discharge range in the main-scanning direction.