Disclosed is a paper feeder for a single sheet printer (9) provided with a paper dispenser (1). The inventive paper feeder is characterized in that it includes a plurality of compartments (A1 à D1) as well as a circuit (10) for conveying the paper from one compartment to the printer (9). The feeding circuit (10) presents a branch (11) leading to the sheet receiving station (13), to which an additional paper dispenser with a structure substantially similar to that of the paper dispenser (1) in the printer (9) can be connected.