| 摘要 |
An automatic printing apparatus according to an embodiment of the present invention, which automatically prints an image on the surface of an inner wall or outer wall of a building subject to printing and which requires image printing, may comprise: a frame; an injection unit mounted to be movable on the frame and provided with a first nozzle and a second nozzle; an ink storage unit provided with a first ink storage unit and a second ink storage unit for respectively storing a first ink and a second ink which are respectively supplied to the first nozzle and the second nozzle; a compressed air unit for providing jet force to eject the first ink and the second ink respectively through the first nozzle and the second nozzle; and a control unit for controlling, on the basis of properties of the image, whether to eject a corresponding ink from at least one of the first nozzle and the second nozzle on the surface subject to printing, and for controlling, on the basis of the properties of the surface subject to printing, the separation distance between at least one of the first nozzle and the second nozzle ejecting ink and the surface subject to printing. |
