Methods and systems for issuing cashless instruments and providing a printer interpreter for a gaming machine are disclosed. The piezoelectric substrate is made of lithium, tantalate, and the support substrate is made of sapphire. The memory controller first attempts to satisfy memory requests from the prefetch buffer allowing the main memory to stay in a reduced power state until accessing it is required. A calibrated reference patch having known emissivity and reflectance is attached to an object of interest and viewed through the camera. The receiving portions are defined in the connecting portions of the adjoining reinforcement side walls.