Question

material jetting printer parameters
why is the resin used in material jetting heated before printing?
to make the finished build less expensive
to allow for a taller layer height
to allow for an easy flow of resin through the tiny printhead

Explanation:

Heating resin in material - jetting reduces its viscosity. Lower viscosity allows for easier flow through the tiny printhead nozzles, enabling a smooth and consistent deposition of material during the printing process.

Answer:

To allow for an easy flow of resin through the tiny printhead