| abstract |
A document feeder system ( 4 ) for use in a document sorting apparatus ( 1 ) is disclosed. The document feeder system ( 4 ) comprises upper ( 102 ) and lower ( 101 ) portions, each having respective feeder elements for feeding documents from a hopper ( 100 ), the upper and lower portions being movable relative to one another between a feeding position, in which the feeder elements of the upper and lower portions are engageable with a document to be fed, and a jam clearance position, in which a document between the feeder elements of the upper and lower portions may be retrieved, wherein the upper and lower portions are urged into the feeding position by a constant force spring ( 121 ). |