Droplet ejecting apparatus

A solution dispenser, comprising:

• a base on which a multiwell plate can be disposed;
• a droplet ejecting apparatus having first surface side facing the base and a second surface side opposite the first surface side, the droplet ejecting apparatus including:
• a plurality of nozzle groups on the first surface side, each nozzle group including a plurality of nozzles, each nozzle group being disposed so as be positioned above a well of the multiwell plate;
• a plurality of pressure chambers, each configured to supply a solution to a corresponding nozzle of a nozzle group in the plurality of nozzle groups;
• a plurality of actuators, each configured to cause a pressure change in a corresponding pressure chamber in the plurality of pressure chambers to control an ejection of a droplet of the solution from the corresponding nozzle;
• and
• a solution holding container having a solution inlet for receiving solution and a solution outlet on the second surface side, the solution holding container being configured to supply the solution to the plurality of nozzle groups via the plurality of pressure chambers;
• and
• a moving stage connected to the droplet ejecting apparatus and configured to move the droplet ejecting apparatus to position the plurality of nozzle groups above wells of the multiwell plate.

A droplet ejecting apparatus, comprising:

• a plurality of nozzle groups each including a plurality of nozzles;
• a plurality of actuators each configured to control an ejection of a droplet of the solution from a corresponding nozzle of a nozzle group in the plurality of nozzle groups;
• and
• a solution holding container having a solution inlet for receiving solution and a solution outlet, the solution holding container being configured to supply the solution to the plurality of nozzle groups, the plurality of nozzle groups ejecting droplets of the solution at a same time.