Ribbon roll drive

A ribbon spool drive system for rotating spool cores having ribbons wrapped therearound about an axis of the core, said cores each formed by inner and outer cylindrical shells concentric about and extending along said axis and spaced apart from one another by a plurality of support walls dividing the space therebetween into three or more compartments extending along said axis with said support walls being separated approximately equally from one another, said drive system comprising:

• a motor having an output means operatively coupled thereto for selectively rotating said output means;
• a drive shaft connected at one end thereof to said motor output means;
• and
• a drive hub means having a collar portion affixed about said drive shaft and having at least three engagement fingers joined to, but in part spaced away from, said collar portion such that said core is mounted on said drive hub means through said inner cylindrical shell being slid over part of si collar portion with said engagement fingers extending into corresponding ones of said compartments in said core, said engagement fingers each having a pair of sides extending approximately along said axis which between them with respect to said axis, subtend an angle such that the two sides on each of said fingers contact support walls in said core.