Printing device and method of controlling printing device

A method of controlling a printing device, the method comprising:

• causing a printing unit of a station to print image data of a plurality of colors generated by an upper level device on a printing medium;
• causing a plurality of holding units of the station to receive and hold image data of the plurality of colors transmitted from the upper level device through a plurality of first transmission paths each of which corresponds to image data each of the plurality of colors;
• causing an identification information output unit of the station to output identification information for identifying the station;
• causing a determination unit to acquire the identification information output in the outputting of the identification information and to determine the number of stations on the basis of the identification information;
• causing a conveyance control unit to set a conveyance speed in accordance with the number of stations determined in the determining of the number of stations and to control a conveyance unit to convey the printing medium at the set conveyance speed;
• and
• causing a control unit to control the plurality of holding units of each of a plurality of stations such that the plurality of holding units of each of the plurality of stations receive the printing information from the upper level device through a second transmission path, and request the upper level device for thinned-out transmission for every number of stations in a raster unit of image data of the plurality of colors on a basis of the printing information, and such that the plurality of holding units of each of the plurality of stations receive and hold image data of the plurality of colors transmitted from the upper level device.