Druckkopf-Führungsvorrichtung

摘要

A print guide mechanism having parallel first and second guide rods 14,16, and a carriage assembly 12 designed to move along the guide rods. The carriage assembly in a preferred embodiment comprises roller bearing assemblies 26,28,74 being secured to the frame and being arranged so as to engage the rods with one assembly pivotally mounted to the frame so as to compensate for parallel misalignment between the guide rods and is biased for applying a loading force so that positive engagement is provided between the guide rods and the roller bearing assemblies. In another embodiment at least one of the roller bearing assemblies has an outer engaging surface made of a material having a modulus of elasticity less than the modulus of the guide rod which it engages.