Printer ribbon guide assembly

Typewriting machines – Including interposed inking device for record-medium – Means auxiliary to ribbon mechanism

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Details

400247, B41J 3504

Patent

active

051817896

ABSTRACT:
The present invention relates to a ribbon guide assembly for a printer. A ribbon guide assembly (40) includes a ribbon guide (50) and a guide support (45). The ribbon guide (50) is employed on a replaceable printer ribbon cartridge to guide an exposed print section of a print ribbon (64) over a print head (80) of the printer. The ribbon guide (50) of the present invention has four members (56, 58, 60, 62) disposed between a bottom platform (52) and a top platform (54), whereby the members define a path for the print ribbon. The ribbon guide also has two collars (66, 68) coupled to the bottom platform and two of the members. Each of the collars defines a substantially circular opening. The guide support (45), affixed to the print head carriage, has two cylindrical alignment rods (90, 92) extending upward substantially perpendicular from the path of the carriage. The alignment rods (90, 92) of the print head are adapted to be inserted through the openings defined by the collars ( 66, 68) of the ribbon guide to securely support the ribbon guide.

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IBM Technical Disclosure Bulletin vol. 29 No. 9 Feb. 1987 "Ink Smudge Prevention/Acoustic Noise Dampening Design for a Dot Matrix".
Prior art ribbon guide assembly for use in a multi-head printer which is manufactured by Output Technology Corporation is shown in FIGS. 1 and 2, and is described in the "Background of the Invention" in the application.

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