Abstract: A storage/retrieval module apparatus for use in a document imaging system can receive digitized optical image and related information data, convert it to electrical digital data for storage on disk at high rates of speed. Concurrently with storage operations, the storage/retrieval module apparatus can also execute retrieval of stored data under command of a host computer or a connected workstation.

Abstract: A high-capacity high-speed storage/retrieval system for storage and retrieval of document images in digitized data form permits clusters of storage/retrieval modules (SRM's) to store and exchange digital data via local area networks within the cluster of SMR's. Additionally, one cluster of SRM's can exchange digitized data with another cluster of SRM's by means of optical links using point-to-point optical controllers.

Abstract: A liquid dispensing apparatus especially suitable for use in dispensing release oil in the fusing apparatus of a xerographic copier comprises a storage reservoir (101), a dispensing container (41) and an overflow tank (52). The storage reservoir (101) is arranged to deliver liquid to the dispensing container (41) on the application of heat, generated for example by operation of a fusing apparatus, to the storage reservoir. The dispensing container (41) includes an outlet through which liquid overflows into the overflow tank (52) when the liquid in the dispensing container reaches a predetermined level (53). Cooling of the liquid in the storage reservoir causes liquid to be drawn from the overflow tank back into the storage reservoir.