Generating a simulator from an architecture description. The printhead maintenance facility has a wiper member extending the length of the nozzle array, a chassis for supporting the wiper member and a maintenance drive. 8 and a second rubber modified vinyl-based graft copolymer including a second rubber having an average particle diameter of about 0. The resilient sheet is configured to be moveable between an unrolled position, a rolled boot insertion position, and a rolled boot supporting position where at least a portion of an outer wall of the resilient sheet is abutted to at least a portion of an inner surface of the boot. Shopping, particularly on-line, can thus be facilitated.