Connecting module providing the connection between a printer and an enveloping machine

A connecting module (2) intended to be inserted between a printer (1) comprising an outlet (13) for printed documents in the form of sheets of paper and envelopes, and an enveloping machine (3) comprising at least one sheet inlet (5) and. an envelope inlet (4), characterized in that it comprises a first zone (17) for receiving documents, which can be aligned with the printed documents outlet (13) of the printer, a second zone (18) for receiving documents, which can be fed with envelopes, a sheet outlet zone (19) which can be aligned with the sheet inlet (5) of the enveloping machine, and an envelope outlet zone (20) which can be aligned with the envelope inlet (4) of the enveloping machine (3), first conveying means (23-28, 31, 32) connecting the first receiving zone (17) to the sheet outlet zone (19), second conveying means (36-39, 41, 42, 45, 52, 54) connecting the first receiving zone (17) to the envelope outlet zone (20), and third conveying means (82, 53, 52, 54) connecting the second receiving zone (18) to the envelope outlet zone (20), controllable routing means (33) being located on a common inlet section of the first and second conveying means in order to select the conveying means according to the type of printed document arriving in the first receiving zone (17).