Line printer hammerbank cover with spaced apart thickened sections
AssigneePrintronix, Inc.
InventorNorman E. Farb
Life of this patent
Estimating the term…
Abstract
A line printer having a hammerbank for printing on media with print hammers to impact a ribbon to form a dot matrix array having printing tips and permanent magnets for magnetically retaining the hammers. Coils release the hammers by overcoming the magnetism to impact a platen against which the hammer printing tips can strike a ribbon and the underlying media. A cover overlies the hammers having an elongated ridge, and is secured to the hammerbank by threaded members. A print ribbon mask is threadably secured to the cover with openings indexed to openings of the cover to allow the passage of the printing tips.
Claims14
A cover for a reciprocating hammerbank having a plurality of print hammers with printing tips for printing on a media with an inked ribbon comprising:
- a single elongated metallic sheet mounted to the hammerbank along its length having upper and lower spaced apart elongated thickened sections;
- and,
- a plurality of openings in said elongated metallic sheet for receiving the print hammer tips therethrough.
A line printer having a hammerbank for printing on media with print hammers to impact a ribbon to form a dot matrix array comprising:
- a plurality of hammers mounted on said hammerbank with printing tips;
- a permanent magnet for retaining said hammers;
- coil means for releasing said hammers;
- a platen against which said hammer printing tips can strike a ribbon and underlying media between said platen and hammers;
- and,
- a single cover overlying said hammers having at least two ridges substantially along its length and secured to said hammerbank by threaded members.
A line printer hammerbank comprising:
- a plurality of print hammers having printing tips mounted on said hammerbank;
- permanent magnets for retaining said hammers against said hammerbank;
- coils for overcoming the permanent magnetism provided by said permanent magnets for releasing said hammers;
- and,
- a cover for mounting over said hammers on said hammerbank with two enlarged substantially continuous cross-sectional areas extending substantially along the length thereof.
Dependencies are inferred from the claim text.