PRINTING DEVICE, PRINTING SYSTEM AND METHOD FOR FILLING WITH LIQUID Russian patent published in 2012 - IPC B41F31/00 B41J2/175 

FIELD: printing.

SUBSTANCE: invention relates to printing. The printing device that implements the method of filling the liquid chamber of the jet head includes a printing head having a liquid chamber and the nozzles, and a reservoir that stores liquid that is fed into the printing head. The device additionally includes a liquid supply channel which supplies the liquid from the reservoir to the liquid chamber; a feeding pump provided in the channel of the liquid feeding; a liquid return channel which returns the liquid from the liquid chamber into the reservoir, a recirculation pump which is provided in the channel of the liquid return. Moreover, the device also comprises a control unit that controls the feeding pump and the recirculation pump, while the liquid is initially filled into the liquid chamber, the control unit activates the recirculation pump in order to set the liquid chamber in a state of negative pressure, and then activates the feeding pump.

EFFECT: group of inventions enables to improve speed of the supply of the ink into the liquid chamber.

11 cl, 14 dwg