Abstract:
A printer has continuously moving type character bearing elements moving along a print line on one side of a document. Type hammers located on the opposite side of the document are operable to impact the document and a type ribbon or the like with selected ones of the type characters which are themselves selectively advanced towards the hammers by an associated actuating means.
Abstract:
A ribbon correction device aligns a web by deliberately skewing a pair of pivoted winding spools to steer the ribbon continuously toward a given median point along the axis of a spool. The device automatically compensates for the effect of a change in the direction of rotation of the winding spool, by means of a single sensing device.