A film comprising in admixture a thermoplastic resin component comprising a thermoplastic resin component and a glass having a refractive index within 0. Each leg member has a front leg portion, a rear leg portion, and a generally horizontal portion. Therefore, the valve member can be removed easily from the driving operation rod. This virtually eliminates the corresponding constraint on the maximum number of robots that can be deployed to perform a task. From the assignment of the letters to the data entry keys and the corresponding mapping in the memory, the letters having a higher probability of occurrence are selected by a single activation of the data entry keys and, letters with a lower probability of occurrence are selected by activating the data entry keys two or more times. The printer also includes a heated platen positioned in the media path downstream of the pilot guides for heating the blank wallpaper prior to printing.