Compact flying printer

Claim 1

In a printing device having printing means, drive means for said printing means and means for incrementally, longitudinally advancing paper relative to said printing means, the improvement in said paper advancing means which comprises a continuously rotating member driven by said drive means; a transmitting member displaceable between a first rest position and a second position; first coupling means operatively engaging said transmitting member and said rotating member for the selective displacement of said transmitting member between said first and second positions in response to the rotation of said rotating member, said first coupling means including a first lever mounted on said transmitting member for pivotable displacement into and out of operative engagement with said rotating member; a first spring means biasing said first lever into said operative engagement; first detent means mounted on said transmitting means for releasably retaining said first lever out of operative engagement with said rotating member; and selective releasing means coupled to said first detent means for selectively releasing said first detent means to permit the displacement of said first lever into operative engagement with said rotating member for the displacement of said transmitting member; second spring means coupled to said transmitting member for the storage of energy during the displacement thereof between said first and second positions; means disengaging said transmitting member and said rotating member at said second position to release said transmitting member for return to said first position in response to the energy stored in said second spring means; paper engaging means for the displacement of said paper; and second coupling means operatively engaging said transmitting means and said paper engaging means during .[.said.]. displacement .[.from said second to said first position.]. .Iadd.of said transmitting means .Iaddend.for operative displacement of said paper engaging means.