Method of manufacturing liquid supply unit

A method of manufacturing a liquid supply unit configured to supply a liquid to a liquid ejecting head, comprising:

• a first molding step of injecting a first resin into different positions inside a fixed mold and a movable mold, in a state of clamping the fixed mold and the movable mold, which is detachable from the fixed mold in a first direction, to mold, at the different positions, respectively, a first member including a first contact portion to be connected to another component, a second member including a second contact portion to be connected to still another component, and an intermediate passage member to be located between the first member and the second member and including a passage structure to connect the first contact portion to the second contact portion;
• and
• a second molding step of bonding the first member, the second member, and the intermediate passage member to one another by detaching the movable mold in the first direction from the fixed mold after the first molding step, moving a die slide mold disposed inside the movable mold in a second direction different from the first direction to perform positioning among the first member, the second member, and the intermediate passage member in the second direction, clamping the fixed mold and the movable mold, and injecting a second resin into the fixed mold and the movable mold,
• wherein the first contact portion and the second contact portion are respectively held on same surfaces inside the fixed mold or the die slide mold during a period from the first molding step to completion of the second molding step,
• wherein each of the first member and the second member has a flat plate shape,
• wherein the liquid ejecting head is a full-line type inkjet printing head for printing an image on a printing medium,
• wherein a plurality of first contact portions are provided to the first member, and
• wherein a plurality of second contact portions are provided to the second member.