A low volume photographic material processing apparatus that utilizes a narrow horizontal processing channel with an upturned entrance and exit to contain processing solution within the channel. A replenishment pump calibration system is integrated into the processor so that no manual measurements or...http://www.google.es/patents/US5353087?utm_source=gb-gplus-sharePatente US5353087 - Automatic replenishment, calibration and metering system for an automatic tray processor
Automatic replenishment, calibration and metering system for an automatic ...