Ribbon drive assembly for ribbon cartridge

Details Ribbon drive assembly for ribbon cartridge Ribbon drive assembly for ribbon cartridge

1994-10-28

1996-01-30

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400208, B41J 3528

Patent

active

054876150

ABSTRACT:
A ribbon cartridge for use in impact type printers such as line printers, typewriters an, fie-dot printers. The ribbon cartridge includes a housing having a bottom wall portion, a re-inking assembly provided in a re-inking compartment within the housing for re-inking a ribbon, a ribbon storage compartment for storing the ribbon, and a ribbon drive assembly provided within the housing for advancing the ribbon. The ribbon drive assembly includes a toothed transfer-drive gear assembly and an idler gear assembly for engagement with the toothed transfer-drive gear assembly. In one embodiment of the present invention, the ribbon cartridge has a partition wall separating between the re-inking compartment and the ribbon storage compartment, and the toothed transfer-drive gear assembly has a vertical wall portion defining a part of the partition wall. A first engaging device is provided adjacent the partition wall and affixed to the bottom wall portion of the housing, and a second engaging device provided on the toothed transfer-drive gear assembly for removably engaging the first engaging device.

REFERENCES:
patent: 4053042 (1977-10-01), Hess
patent: 4408914 (1983-10-01), Ciesiel et al.
patent: 4449838 (1984-05-01), Okamura et al.
patent: 4624592 (1986-11-01), Purcell
patent: 4653947 (1987-03-01), Echols
patent: 4741640 (1988-05-01), Yoshioka
patent: 4913571 (1990-04-01), Bulson et al.
patent: 5005996 (1991-04-01), Paterra et al.
patent: 5215012 (1993-06-01), Kanno et al.
patent: 5248208 (1993-09-01), Yoshida et al.
"Self-Aligning Ribbon-Stuffing Mechanism" IBM Technical Disclosure Bulletin, vol. 28, No. 9, Feb. 1986.

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