A fluidic adapter (200) for an ink jet print cartridge (50) having nozzles for ejecting ink in a ejection direction and having an ink inlet port oriented to receive ink in a direction substantially opposite to the ejecting direction. The adapter comprises a body (202) having an outer shell and first and second end portions defining an internal chamber which provides an internal fluid conduit for ink between the first and second ends of the bodys, and a fluidic coupling affixed to the first end of said body and in fluidic communication with the internal chambers. The fluidic coupling is adapted to releasably seal to the inlet port of the print cartridge when the body is engaged with the print cartridge to allow fluid communication between the internal fluid conduit and the inlet port of the print cartridge so as to allow ink flow through the fluidic conduit to the fluidic coupling through the fluid coupling and into the inlet port of the print cartridge in a direction substantially opposite to the ejection direction.