Corrugated fiberboard printing device and box-making machine having the same

A corrugated fiberboard printing device which prints a pattern to a corrugated fiberboard which is transported on a transport passage, comprising:

• an inkjet head which is disposed above the transport passage and injects ink to the corrugated fiberboard;
• a protection device which regulates approaching of the corrugated fiberboard within a predetermined distance against the inkjet head;
• and
• a controller which acquires order information of the corrugated fiberboard from a production management device and controls the operations of the inkjet head and the protection device,
• wherein the protection device includes multiple regulation means which are juxtaposed in a width direction of the corrugated fiberboard, and a movement mechanism which moves each of the multiple regulation means in the width direction, wherein the controller includes
• a specific column setting unit configured to set a specific column, in which a printing quality is less influenced by the regulation means, with respect to the corrugated fiberboard in a sheet width direction based on the order information, and
• a movement mechanism control unit which controls the operation of the movement mechanism and moves each of the regulation means so as to regulate the corrugated fiberboard in the specific column.