Fluidic adapter for use with an inkjet print cartridge having an internal pressure regulator

An ink delivery system for an inkjet printing system comprising:

• a printhead fixed to housing having a fluid inlet, the printhead being capable of ejecting droplets of ink in an ejection direction;
• a source of ink for replenishing the printhead;
• an ink conduit in fluid communication with the source of ink;
• and
• a removable an adapter having an internal chamber for providing an ink fluid path, the removable adapter having an inlet fluid coupler for receiving ink from the ink conduit and an outlet fluid coupler that releasably and fluidically connects to the fluid inlet of the housing, wherein the adapter has a first portion that allows ink flow from the inlet fluid coupler to the outlet fluid coupler in a direction substantially opposite to the ink ejection direction;
• and
• wherein the first portion is connected to a second portion that receives ink from the first portion such that the ink flows through the second portion to the outlet fluid coupler in a direction substantially perpendicular to the ejection direction.

A printing system, comprising:

• a scanning carriage;
• a housing having an internal chamber and a fluid inlet in fluid communication with the internal chamber, the housing mounted to the scanning carriage;
• a printhead mounted to the housing for ejecting ink in an ejection direction;
• an ink source;
• an ink conduit in fluid communication with the ink source;
• and
• an adapter having an internal chamber for providing an ink fluid path, the adapter having an inlet fluid coupler for receiving ink from the ink conduit and an outlet fluid coupler that releasably and fluidically connects to the fluid inlet of the housing, wherein the adapter is installable in a direction opposite the ink ejection and has a first portion that allows ink flow from the inlet fluid coupler to the outlet fluid coupler in a direction substantially opposite to the ink ejection direction.