Ink print head with low flow resistance central refilling

An ink print head comprising:

• an ink container for storing fluid;
• a circuit board installed at a bottom of the ink container having a central slot for passing fluid;
• a dry film formed on the circuit board having a plurality of injection chambers;
• a nozzle plate formed below the dry film, a middle portion of the nozzle plate protruding outwardly at least two sides of the nozzle plate so as to form an ink chamber, the two sides of the nozzle plate having a plurality of nozzles corresponding to the injection chambers of the dry film;
• and
• a plurality of heaters set on the circuit board for heating fluid inside the injection chambers so that the fluid is capable of being injected from the nozzles of the nozzle plate;
• wherein fluid inside the ink container will flow through the central slot into the ink chamber and then into the injection chambers.