Random image processing method and printing device control system

[0062] In this application, the main control computer (referred to as the host) transmits the rasterized master image data to the printing equipment control system, such as the high-speed inkjet printing equipment control system. The host transfers the size (width * length) of the image that needs to be randomly extracted, the number of pages, and the method of generating random position parameters as parameters to the high-speed inkjet printing equipment control system; when printing starts, the high-speed inkjet printing equipment control system first The set random position parameter generation method generates random position parameter coordinates x, y, and calculates the image data storage location corresponding to the random position parameter coordinates as the data reading address. The control system starts from the calculated address, reads the image data of a line with a set width, and performs further processing according to the arrangement of the imaging parts or direct