A method for conditioning a recording medium storage enclosure (12, 80, 312, 412) in a printing system, the recording medium storage enclosure (12, 80, 312, 412) comprising an exit opening (60, 94) being arranged at a first end (12a, 80a, 312a, 412a) of the recording medium storage enclosure (12, 80, 312, 412), which exit opening (60, 94) is configured for releasing a portion of a recording medium (34, 83) towards a printing station of the printing system, the method comprising the step of: a) providing an air flow inside the recording medium storage enclosure (12, 80, 312, 412) in a main air flow direction (M, M 1, M 2, M 3, M 4) adjacent to the exit opening (60, 94), wherein the main air flow direction (M, M 1, M 2, M 3, M 4) is aligned along a direction of the exit opening (60, 94), which is substantially perpendicular to a feeding direction of a recording medium through the exit opening (60, 94); characterised by the steps of: b) circulating a first portion of the air flow (F 1, D 1, E 1, G 1) provided in step a) within the recording medium storage enclosure (12, 80, 312, 412) between the first end (12a, 80a, 312a, 412a) and the second end (12b, 80b, 312b, 412b) of the recording medium storage enclosure (12, 80, 312, 412) opposite of the first end (12a, 80a, 312a, 412a); and c) directing a second portion of the air flow (F 2, D 2, E 2, G 2) provided in step a) towards the exit opening (60, 94) in order to provide an overpressure inside the recording medium storage enclosure (12, 80, 312, 412) adjacent to the exit opening (60, 94) with respect to an ambient pressure outside the recording medium storage enclosure (12, 80, 312, 412). a) providing an air flow inside the recording medium storage enclosure (12, 80, 312, 412) in a main air flow direction (M, M 1, M 2, M 3, M 4) adjacent to the exit opening (60, 94), wherein the main air flow direction (M, M 1, M 2, M 3, M 4) is aligned along a direction of the exit opening (60, 94), which is substantially perpendicular to a feeding direction of a recording medium through the exit opening (60, 94); characterised by the steps of: b) circulating a first portion of the air flow (F 1, D 1, E 1, G 1) provided in step a) within the recording medium storage enclosure (12, 80, 312, 412) between the first end (12a, 80a, 312a, 412a) and the second end (12b, 80b, 312b, 412b) of the recording medium storage enclosure (12, 80, 312, 412) opposite of the first end (12a, 80a, 312a, 412a); and c) directing a second portion of the air flow (F 2, D 2, E 2, G 2) provided in step a) towards the exit opening (60, 94) in order to provide an overpressure inside the recording medium storage enclosure (12, 80, 312, 412) adjacent to the exit opening (60, 94) with respect to an ambient pressure outside the recording medium storage enclosure (12, 80, 312, 412). b) circulating a first portion of the air flow (F 1, D 1, E 1, G 1) provided in step a) within the recording medium storage enclosure (12, 80, 312, 412) between the first end (12a, 80a, 312a, 412a) and the second end (12b, 80b, 312b, 412b) of the recording medium storage enclosure (12, 80, 312, 412) opposite of the first end (12a, 80a, 312a, 412a); and c) directing a second portion of the air flow (F 2, D 2, E 2, G 2) provided in step a) towards the exit opening (60, 94) in order to provide an overpressure inside the recording medium storage enclosure (12, 80, 312, 412) adjacent to the exit opening (60, 94) with respect to an ambient pressure outside the recording medium storage enclosure (12, 80, 312, 412).