Abstract: A liquid droplet forming device for stably forming and ejecting a liquid droplet of a dispersion liquid containing settling particles includes an ejection head that ejects a liquid droplet of a liquid containing settling particles, and a control unit. The control unit controls a behavior of the ejection head by supplying an electrical signal. The ejection head includes a liquid holding portion that holds the liquid, a film-like member that has an ejection hole for ejecting the liquid droplet and that forms a liquid chamber, which holds the liquid, together with the liquid holding portion, and vibration applying means for vibrating the film-like member based on the electrical signal. The electrical signal includes an ejection signal for forming the liquid droplet by vibrating the film-like member, a stirring signal for vibrating the film-like member and a micro-vibration signal.

Abstract: A general-purpose jig is provided which includes a base, a locational holding device mounted on the base and having a tripod robot that includes three expansion actuators, and a clamp attached to the locational holding device. The position of the clamp can be changed by changing the length of each of the expansion actuators, depending upon an object to be held, according to a command from a control device. The locational holding device may further include a three-axis rotary unit located between the clamp and the tripod robot. The posture of the clamp can be kept constant by controlling the three-axis rotary unit while the clamp is being moved by the expansion actuators.