The utility model belongs to the technical field of ink-jet printing, solves the problem that in the prior art, an ink
path system is unstable due to ink properties, and provides an ink
path system and printing equipment, the ink
path system comprises an ink supply module used for supplying ink to an ink-jet
assembly; the ink returning module is used for returning the ink of the ink jet
assembly into the ink supply module; the pneumatic control module is used for regulating and controlling the amount of ink in the ink return module and the ink supply module through positive and negative pressure; the cleaning module communicates with the ink jet
assembly and is used for cleaning the ink jet assembly; the ink supply module comprises an ink supply box, a transfer ink bin and an ink
barrel, the transfer ink bin is connected with the ink supply box and the ink
barrel, and the ink supply box is connected with the ink jet assembly and used for supplying ink to the ink jet assembly. Ink is buffered through the transfer ink bin, meanwhile, the ink return module, the pneumatic control module and the cleaning module control the ink supply module and the ink jet assembly in the ink path in a coordinated mode, and the problem that the ink path is unstable is solved.