Disclosed herein is a mounting system for mounting a print medium supporting structure in a printing device, a printing device and a method of operating a printing device. The mounting system comprises a carrier assembly that is to carry the supporting structure. The carrier assembly comprises a bushing element to movably mount the carrier assembly on a guiding rod in the printing device. The bushing element comprises a first bushing that is to slidably receive the guiding rod and to allow for a tilting motion of the carrier assembly relative to the guiding rod around a first axis perpendicular to the guiding rod. The carrier assembly further comprises a flexible element to couple the supporting structure to the carrier assembly. The flexible element is to allow for a tilting motion of the supporting structure relative to the carrier assembly around a second axis different from the first axis.