JET PRINTING HEAD CONTROL COMMANDS ISSUING METHOD Russian patent published in 2019 - IPC B41J2/45 

FIELD: printing equipment.

SUBSTANCE: invention relates to a method of supplying control commands of an ink-jet recording head, which includes at least a printing system with a nozzle on the side of the ink chamber, which is facing the printed matter, closed, at least partially preferably with a diaphragm facing from the printed material side, which is deflected by means of a piezoelectric cell mechanically connected to the diaphragm with electronic control from the ink chamber so as to draw ink therefrom from the cartridge, and deflected to or into the ink chamber for extrusion through it of the ink drop, wherein the printing system consisting of an ink chamber, a diaphragm and a piezoelectric element with an electronic control circuit, is an oscillatory formation, excited by power-consuming control command to oscillation with proper resonant frequency f_res, that is there is no or almost no suppression of oscillation with period T_res = 1 / f_res, wherein the colour saturation of the printing image point is varied by the possibility of squeezing several ink drops from the same nozzle successively onto each image point with a time interval T_tropf = 1 / f_tropf, wherein said control signal feeds energy into printing system exactly at the moment when ink drop is actually needed.

EFFECT: disclosed is a method of feeding inkjet printhead control commands.

12 cl, 9 dwg