Typewriting machines – Including interposed inking device for record-medium – Means auxiliary to ribbon mechanism
Patent
1997-10-23
1999-03-23
Bennett, Christopher A.
Typewriting machines
Including interposed inking device for record-medium
Means auxiliary to ribbon mechanism
400208, 400250, B41J 3526
Patent
active
058850155
ABSTRACT:
A dye donor cartridge and method for use in a printer. The cartridge comprises a dye donor ribbon formed into a roll. The dye donor ribbon has an end portion. A shield is attached to the end portion of the dye donor ribbon and surrounds the dye donor ribbon as the dye donor ribbon forms the roll. In this manner, the shield shields the dye donor ribbon from damage during handling of the ribbon roll. The dye donor ribbon roll including its shield is mountable on a supply spool, so that the dye donor ribbon unrolls from about the supply spool as the supply spool rotates. The shield preferably has a plurality of sprocket holes for engaging the sprockets of a take-up spool, so that the dye donor ribbon is precisely taken-up onto the take-up spool without "jamming" as the take-up spool rotates. An alternative embodiment of the invention comprises an encasement surrounding the shield as the shield surrounds the dye donor ribbon for enhancing protection of the dye donor ribbon roll during handling. The encasement has a slit for passage of the shield and the dye donor ribbon therethrough. Moreover, the encasement includes an integrally attached lip of predetermined shape and extending along the slit for separating the shield from the roll of dye donor ribbon and for guiding the shield through the slit.
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IBM Technical Disclosure Bulletin, vol. 24, No. 11B, "Rapidly Exchangeable Wear-Resistant . . . ", Apr. 1982.
Young No, A Printer Adapted to Guide a Dye Donor Therein and Method Therefor; Oct. 23, 1997 (Attorney Docket 76332).
Delorme John D.
No Young
Bennett Christopher A.
Eastman Kodak Company
Stevens Walter S.
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