Patent ID: 8091989

Claim:
Wide format multi-jet print head (T), wider than 1 meter, composed of several X inkjet print devices (Mi) intended to print on a moving support (S) in which: each device comprises: a body intended to extend along an axis (A-A′) transverse to the direction of motion (f) of the support, an ink ejector fixed to the body and adapted to eject ink along an ejection plane (E) parallel to the axis (A-A′), at least one part defining an output orifice ( 6 ) through which at least part of the ejected ink ( 40 ) passes to print the moving support, a cavity delimited at least by the body, the ejector and the part(s) defining the output orifice, an air injector adapted to blow air with a flow approximately parallel to the ink ejection plane (E) passing through the cavity, from a zone below the ejector as far as the output orifice; the devices are in the form of adjacent modules (Mi) along the same transverse axis (A-A′) and each module producing several m jets and comprising a block of electrodes, in which a single injector is common to all modules (M 1 -Mx), the injected air flow being uniform over the width of the head (T).