Autopurge printing system

A system, comprising:

• an ink supply system configured to supply ink to a printhead through an ink line;
• and
• an autopurge unit configured to automatically clean the printhead, said autopurge unit comprising:
• a solvent supply in fluid communication with a solvent line;
• a solenoid housing having (i) a first solenoid assembly disposed within the ink line, wherein the ink line is in fluid communication with the ink supply and a first outlet that is configured to be in fluid communication with the printhead;
• and (ii) a second solenoid assembly disposed within the solvent line, wherein the solvent line is in fluid communication with the solvent supply and a second outlet, which is configured to be in fluid communication with the printhead;
• and
• a waste container in fluid communication with a waste delivery line having a waste inlet, wherein the waste inlet is configured to be in fluid communication with a waste line that is in communication with the printhead so that fluid waste from the printhead is deposited into the waste container.

A method of automatically cleaning a printhead of an inkjet printer, the method comprising:

• engaging a first solenoid assembly to constrict a solvent supply line;
• squeezing solvent through a portion of the solvent supply line that is downstream from the first solenoid assembly due to said engaging;
• and
• pulsing the solvent from a solvent port, which is in fluid communication with the solvent supply line, causing the solvent to run over an orifice plate of the printhead so that debris is removed from the orifice plate.