An example assembly includes a first guide positioned in a pre-print zone area of an imaging device. A second guide rotatably is connected to the imaging device and spaced apart from the first guide to permit a print medium to traverse between the first guide and the second guide. A bearing mechanism connects the second guide to the imaging device in the pre-print zone area. An interface mechanism is operatively connected to the second guide. A bias element is positioned between the interface mechanism and the second guide to release energy upon exposing the interface mechanism to the pre-print zone area allowing rotation of the second guide away from the first guide.