Single element imprinting assembly - has kinematically independent controls for character selection and imprinting movements of printing element

The single element imprinting assembly of the disc, cylindrical or spherical type for use in typewriters has a stationary printing assembly having kinematically independent controls for character selection and imprinting movements of the printing element. The stationary printing assembly arrangements avoids the penalty of added moving mass when the mass of the character selection prime mover is increased. For the cylindrical and spherical types, the independent movement is achieved by three separate drive controls such that the axis of the tilt or control and the axis of the rotational drive control both perpendicularly intersect the axis of the imprinting drive control at separate points with universal joints or other constant speed couplings being located at each respective intersection allowing independent and concurrent rotation.