Automatic chemistry replenishment and temperature maintenance. A microcomputer automatically signals the internal replenishment pumps to meter the proper amount of developer and fixer to maintain chemistry strength. This ensures optimum chemistry strength and is more economical because excess chemistry is not used. Stand-by mode for energy conservation. After films exit the processor, the A/T 2000 XR will automatically return to stand-by mode. Electricity use, water consumption and system wear are reduced. Daylight Loader available. The optional Panoramic Daylight Loader and a Quick Loader Covered Feed Chute eliminate the need for a dark room.