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By increasing the density horizontally of the print wires in a wire matrix printer, the output speed of the printer increases proportionately.
English (United States)
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Double Density Line Printing Magnet Assembly
By increasing the density horizontally of the print wires in a wire matrix
printer, the output speed of the printer increases proportionately.
This apparatus utilizes slanted print wire actuator magnets to double the
output speed. The print wires are arranged along a slant horizontally such as
shown in an earlier article , but are divided herein into two slanted groups per
eight print wires rather than one, as illustrated in that article. The print assembly
has utility in a printer such as that earlier described .
In the drawing, the slanted actuator magnets 1 are positioned on a supporting
member 2, with their center lines angled 6 degrees from the center line 3 of a
platen 4. These magnets have associated print wire guides 5. Behind actuator
magnets 1 and in between them are actuator magnets 6 with longer wire guides
7 arranged at a 3 degrees angle from the center line 3. This difference in angles
provides clearance to allow wire guides 7 associated with magnets 6, to reach
platen 4 as well as wire guides 5. Outer magnets 6 are positioned .111 inch from
inner magnets 1 to accommodate 10 and 15 character-per-inch printing. Outer
actuator magnets 6 are individually supported, as shown at 8, so that the inner
actuator magnets 1 may be more easily serviced. References 1 D.K. Rex, "Wire
Matrix Printer," IBM Technical Disclosure Bulletin 21, 13-14 (June 1978). 2 S.U.
Blaskovic and A.W. Oaten, "Print Head to Platen an...