A process chamber is configured to contain a work piece in a controlled atmosphere and to perform a process that emits pyrophoric particulates. The printing device is capable of printing images on a recording sheet. The operation unit is coupled to the sensing unit, for determining the scan area according to the touch signal. A method of increasing the drying rate of a composition applied to a substrate to form a coating that includes application of the emulsion composition and drying the composition to form a coating layer.