IMPULSE FLUID JET APPARATUS WITH DEPRIMING PROTECTION

摘要

An impulse fluid or ink jet print head (10) comprises a manifold (30) which is supplied with fluid in the form of ink through two check valves (32) located at an end of a plurality of supply channels (48). The check valves (32) comprise a diaphragm (34) which seats against a valve seat (36) in the print head (10) when the valve is closed. A diaphragm (34) when open permits the flow of ink when seated against an end (38) of a check valve insert or support (40).