Textiles: fiber preparation
Patent
1975-04-17
1976-10-26
Rader, Ralph T.
Textiles: fiber preparation
197151, 197170, B41J 304
Patent
active
039878830
ABSTRACT:
An improved mechanism is provided for preventing long-term oil contamination of the print ribbon in a wire matrix printer. In the event that the print ribbon has an excess of oil thereon, it will cause the printed characters to be alternatively too light or too dark thereby reducing the print quality on the document. The print head of the wire matrix printer is operated to an idle or at rest position when printing is not being effected, a camming mechanism retracts the print head away from the platen and document. When this occurs, a stationary member on the printer carriage engages the ribbon and moves it away from contact with the print head in the vicinity of the apertures through which the print wires are guided for printing. With the ribbon moved away from the apertures, the lubricant oils on the print wires do not flow on to the ribbon. The retracting of the print head away from the platen and document by the camming mechanism also permits the easy insertion of new forms into the printer.
REFERENCES:
patent: 3726381 (1973-04-01), Murphy
patent: 3750792 (1973-08-01), Liles
patent: 3788442 (1974-01-01), Lehnhardt et al.
patent: 3822005 (1974-07-01), Murat
patent: 3881587 (1975-05-01), Okabe
patent: 3904015 (1975-09-01), Boyden et al.
Darwin Daniel P.
Rex Donald K.
Black John C.
Cooper D. Kendall
International Business Machines - Corporation
Jancin J.
Rader Ralph T.
LandOfFree
Ribbon lifting mechanism for a wire matrix printer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ribbon lifting mechanism for a wire matrix printer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ribbon lifting mechanism for a wire matrix printer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-180319