Liquid transfer

(canceled)

A software program product comprising processor-executable instructions that cause a liquid transfer device to selectively operate in a first mode, a second mode, or a third mode, wherein

• in the first mode, the liquid transfer device produces individual droplets of liquid using a dispenser only,
• in the second mode, the liquid transfer device produces a stream of a liquid using a pump only, and
• in the third mode, the liquid transfer device produces a jet of droplets of the liquid using both the dispenser and the pump.

A method of transferring a liquid, comprising:

• selecting one of individual droplets, a stream of the liquid, or a jet of droplets for liquid transfer;
• and
• controlling a liquid transfer device having a pump and a dispenser to dispense the liquid based on the selection, so that the individual droplets are dispensed with the dispenser only, the stream of the liquid is dispensed with the pump only, and the jet of droplets is dispensed with the dispenser and the pump based on the selection.