Abstract: An impact head includes an arm member moving to a protruding position when a magnetic flux is generated and to a return position when the magnetic flux disappears; an impact member connected to the arm member for protruding when the arm member moves to the protruding position and returning to an original position when the arm member moves to the return position; and an urging member for urging the arm member with a restricted urging force when the magnetic flux is generated and urging the arm member to the return position when the magnetic flux disappears.

Abstract: An impact printhead includes impact wires loosely held in a guide and driven to print. The printhead includes individual holes through which corresponding wires extend, and elongated holes formed in the guide for guiding the wires. The elongated hole includes a concave wall and a convex wall opposing each other. The wires are slidable on the convex wall. When the wires are not driven to print, the wires are at rest in pressure contact with the convex wall. Grooves may be formed in place of the elongated holes, and have second walls. The second wall lies substantially in a curved plane in which a first wall lies to define the individual hole. The wire is guided by the hole and groove. When the wire is not driven to print, the wire is at rest in pressure contact with the first and second walls.

Abstract: A printing apparatus comprises a print head, disposed to a horizontally movable carriage, for printing a recording medium, a print cartridge disposed in a detachably attachable manner to said print head, and a member disposed in a range including an operating range for attaching and detaching said print cartridge, wherein said member has at least a portion positioned in said operating range for attaching and detaching said print cartridge, and wherein the portion is escapable from said operating range for attaching and detaching said print cartridge.

Abstract: An impact head includes an arm member moving to a protruding position when a magnetic flux is generated and to a return position when the magnetic flux disappears; an impact member connected to the arm member for protruding when the arm member moves to the protruding position and returning to an original position when the arm member moves to the return position; and an urging member for urging the arm member with a restricted urging force when the magnetic flux is generated and urging the arm member to the return position when the magnetic flux disappears.

Abstract: An impact printhead includes impact wires loosely held in a guide and driven to print. The printhead includes individual holes through which corresponding wires extend, and elongated holes formed in the guide for guiding the wires. The elongated hole includes a concave wall and a convex wall opposing each other. The wires are slidable on the convex wall. When the wires are not driven to print, the wires are at rest in pressure contact with the convex wall. Grooves may be formed in place of the elongated holes, and have second walls. The second wall lies substantially in a curved plane in which a first wall lies to define the individual hole. The wire is guided by the hole and groove. When the wire is not driven to print, the wire is at rest in pressure contact with the first and second walls.

Abstract: A printing apparatus comprises a print head, disposed to a horizontally movable carriage, for printing a recording medium, a print cartridge disposed in a detachably attachable manner to said print head, and a member disposed in a range including an operating range for attaching and detaching said print cartridge, wherein said member has at least a portion positioned in said operating range for attaching and detaching said print cartridge, and wherein the portion is escapable from said operating range for attaching and detaching said print cartridge.