Automatic document feeder for folding and/or inserting machine

Automatic document feeder for a folding and/or insertion machine of the type including a first path coupled to a document entry and feeding a folder module with two folder pockets associated with a set of folder rollers, a second path coupled to an empty envelope entry and feeding an inserter module coupled to the folder module to receive the documents, a third path coupled to a filled and closed envelope exit and to the inserter module and having means for closing envelopes, and a control circuit, in which automatic feeder said document entry is surmounted by at least two loading bins adapted to cooperate with said entry in different modes of operation, individually or in combination, using a set of sensors and drive members controlled by a programmed microprocessor of said control circuit via an input/output interface circuit in said feeder, and at least one loading bin has a movable bottom adapted to assume either a closed position for automatic introduction of documents or an open position for manual introduction of documents, using a cam control mechanism.