Abstract: An offset marking system includes a marking wheel depending from an indexing motor adjacent to a window in a tube that carries components to be marked. A print wheel is rotatably mounted in a bearing. The indexing motor and bearing are slidably mounted on supports between a spring and a motor-operated cam. A rotating ink roller conveys ink from an ink reservoir to the print wheel. As an alternative to the motor-operated cams, a solenoid-operated level pivoted about an axis in the plane of the print wheel and marking wheel selectively moves the print wheel and marking wheel apart and together by acting on the bearing and indexing motor.