DROPLET BREAK-UP DEVICE

摘要

The invention relates to a droplet break up device (1) comprising: a chamber (2) for containing a pressurized printing liquid (3) comprising a bottom plate; at least one outlet channel (4, 4') having a central axis, provided in said chamber for ejecting the printing liquid; and an actuator for breaking up,a fluid jetted out of the outlet channel. The actuator comprises a revolving, member (5) comprising a surface deformation (7, 7') shaped to provide a pressure pulse near the outlet channel. Accordingly, a simple mechanism is provided for providing multiple printing nozzles.