According to aspects described herein, there is disclosed an apparatus and method for controlling a position of a belt in a printing system. The apparatus including a roller assembly for engaging at least a portion of the belt. The roller assembly extending laterally across the belt. The apparatus including a pair of laterally spaced support arms each rotatably supporting opposed ends of the roller assembly. Each support arm being pivotally coupled to the printing system for movement about a pivot axis extending substantially in the lateral direction. The apparatus also including a pair of actuating assemblies each configured to pivot a different one of the support arms about the pivot axis. The pivotal movement of each of the pair of support arms by the respective actuating assemblies being independent of the other.