Abstract: A serial printing device, comprising a fixed structure, a printing carriage on one side of the fixed structure able to slide along a printing line, and a contrasting element disposed on the other side of the fixed structure. A printing element is disposed on the printing carriage and is associated with a reference element able to contact the surface of the printing support. First elastic elements are disposed between the printing element and the printing carriage and second elastic elements are disposed between the contrasting element and the fixed structure.

Abstract: A platen (115) of the flat type for an impact printer comprising a metal body (220) for support and a plastics body (222) for protection and absorption of vibrations, in which the metal body (220) is completely embedded in the plastic body (222).

Abstract: A serial printing device, comprising a fixed structure, a printing carriage on one side of the fixed structure able to slide along a printing line, and a contrasting element disposed on the other side of the fixed structure. A printing element is disposed on the printing carriage and is associated with a reference element able to contact the surface of the printing support. First elastic elements are disposed between the printing element and the printing carriage and second elastic elements are disposed between the contrasting element and the fixed structure.

Abstract: A multicolor inked ribbon cartridge for an impact serial printer comprising a ribbon housing body and two arms protruding from such body to allow the interposition of a ribbon portion between a printing head and a printing support for the whole length of the platen when the cartridge is rotatably attached to the frame of an impact serial printer by means of two lateral cylindrically-shaped projections provided on the body of a cartridge thus permitting rotation of the body around a common axis of said cylindrical projections, parallel to the platen. The cartridge rotation around such axis and therefore the positioning of a suitable multicolor band between the printing head and printing support is assured by a cam actuated by a motor and interacting with the body of such cartridge. The cartridge is further provided with a string made tight between the ends of its arms upon the multicolor ribbon portion which is interposed between the head and printing support.