Inkjet recording device and manufacturing method for same

A method for manufacturing an inkjet recording device,

• the inkjet recording device comprising:
• at least one inkjet head having a pressure chamber that communicates with a nozzle and being configured to eject ink from the nozzle, the ink communicating with the pressure chamber;
• a first pressure source configured to adjust energy per unit volume of the ink so that the ink generates “energy per unit volume” P1(Pa), relative to static ink at an atmospheric pressure at a position having a height of an opening of the nozzle;
• and
• a second pressure source configured to adjust energy per unit volume of the ink so that the ink generates “energy per unit volume” P2(Pa), relative to static ink at an atmospheric pressure at the position having the height of the opening of the nozzle,
• the first pressure source, the pressure chamber, and the second pressure source being connected in this order by a flow path,
• the method comprising:
• assuming that a pressure loss occurring from the first pressure source to the nozzle due to a circulation flow rate is ΔPa, calculating a constant of proportionality “a” of a differential pressure (P1−P2) and ΔPa;
• and
• assuming that an appropriate pressure that is generated in a vicinity of the opening of the nozzle is Pn,
• designing so that a relation P2={Pn−(1−a)P1}/a is established.