Patent ID: 8196544

Claim:
A system for depositing liquefied material onto a support surface, the system comprising: a distribution unit comprising nozzles which eject the liquefied material onto the support surface; and a feeding system which feeds the liquefied material to the distribution unit, wherein the feeding system comprises: a main container which stores the liquefied material; a recovery container which recovers the liquefied material ejected from the nozzles; a return line which transports the liquefied material from the recovery container to the main container; at least one feed line which transports the liquefied material from the main container to the distribution unit; and a regulator disposed on a liquefied material path between the main container and the distribution unit, wherein the regulator comprises a moveable liquefied material container, wherein a movement of the moveable liquefied material container and the liquefied material therein regulates a distribution of pressure between the regulator and the distribution unit, thus altering a pressure in the distribution unit and altering an ejection pressure of at least one of the nozzles.