A platen for use in printing on an object, wherein the platen has an adjustable area of a working surface on which to place the object. The platen surface includes a plurality of elements, wherein each element includes a flat surface that can be positioned at a working level at which the object is to be placed, and wherein an operator can insert or remove each element and thereby the corresponding flat surface of that element from the working level as required in order to provide a desired area of the working surface. In one embodiment, the platen includes a base plate and a plurality of elements which can be positioned on the base plate or removed to form a desired configuration of the working surface.