Painting machine comprising a mobile carriage (1) and means for applying a liquid product, comprising: a) a plate (2) capable of supporting a container (100) of said product, on which is mounted a box (3) ) functional, b) an applicator roller (4) provided with a cylindrical sleeve (41) movable in rotation, c) a product dispenser (5), comprising means for fixing to the roller (4) and input means and distribution of the product on the surface of said sleeve, d) means for supplying the distributor (5) with product comprising: - a peristaltic pump (6) associated with a motor, - a flexible duct (7) having a proximal end ( 71) intended to be immersed in the product and a distal end (72) connected to the inlet of the distributor (5), said duct passing through said peristaltic pump, said pump being configured to suck the product in the duct (7) at from said container and move it to said sleeve (41), e) control means comprising a modul e electronics connected to a control unit, configured to activate the pump (6) according to an operating mode selected by the user. FIGURE 2
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