Head lifting lowering device, control method of head lifting lowering device, non-transitory computer-readable storage medium storing program, manufacturing method of head lifting lowering device

A head lifting lowering device, comprising:

• a lifting lowering mechanism that moves a liquid ejecting head, which ejects a liquid, straight in a first direction in which the liquid ejecting head is lifted/lowered, wherein the lifting lowering mechanism includes a first rail and a second rail;
• a frame that supports the lifting lowering mechanism;
• and
• an adjusting member that moves the first rail relative to the frame in a second direction different from the first direction, wherein
• the second direction is orthogonal to the first direction,
• the first rail and the second rail are supported by the frame,
• the first rail and the second rail each guide, in the first direction, a protrusion provided on the liquid ejecting head,
• the second rail is fixed to the frame,
• the first direction includes a component of a horizontal direction,
• the first rail includes an upper wall and a lower wall that form a moving path on which the protrusion moves,
• a first gap between the upper wall and the lower wall at a first end of the moving path is smaller than a second gap between the upper wall and the lower wall at a second end of the moving path,
• first end of the moving path is opposite to the second end of the moving path, and
• the second end of the moving path is adjacent to the second rail.