Platen and printer

Details Platen and printer Platen and printer

1997-05-28

1998-10-06

Burr, Edgar S.

Typewriting machines

Platen or platen-moving mechanism

Bar platen

400648, B41J 1108

Patent

active

058167242

ABSTRACT:
In the present invention, the platen bar is compositely formed of three materials. For a sole layer, a material is used which has high hardness and strength, and has a property that the repulsion against the impact of the print wires is large. For an elastic layer, a material is used which transmits less vibration to the platen base in the print operation and absorbs the impact when the wires of a printhead strike the sole layer. For platen bases, a material is used which has a very high hardness, a high molding precision, and less dimensional change due to temperature change or change with time. The elastic layer is exposed on the surface and a gap roller is positioned at the exposure location. With this, the occurrence of the dent by the gap roller can be prevented when the printing on a copy form is performed.

REFERENCES:
patent: 2873838 (1959-02-01), Metzner
patent: 4318452 (1982-03-01), Reitner
patent: 4327366 (1982-04-01), Schafter et al.
patent: 4929106 (1990-05-01), Buan et al.
patent: 4957382 (1990-09-01), Delaney et al.
patent: 4984917 (1991-01-01), Hauslaib et al.
patent: 5090825 (1992-02-01), Merriman, Jr. et al.
patent: 5168803 (1992-12-01), Kunz et al.

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