a configuration for the transport and simultaneous alignment of sheets has a straightedge , at least one conveyor belt disposed slightly at an angle to the straightedge in the direction of movement of the sheets , and an air suction device . the conveyor belt exhibits open transverse slots on its upper side carrying the sheets . the upper half of the conveyor belt runs in a guide channel that is open in an upward direction , and the transverse slots are connected to the air suction device in such a way as to permit the flow to take place . a controller is provided to control the supply of air in the area of the transverse slots .