It is disclosed a printer comprising a front opening through which one or more documents to be treated could be introduced therein, wherein the printer comprises a first path for transporting said one or more documents from a first position to a second position and back to the first position; wherein the printer further comprises a second path for transporting said one or more documents from said first position to an exit, wherein said second path comprises a flap for deviating said one or more documents towards said exit and a separator for directing the one or more documents to one of a first tray and a second tray.