Typewriting machines – Having power-driven operator for plural functions
Patent
1986-11-12
1988-05-03
Wright, Jr., Ernest T.
Typewriting machines
Having power-driven operator for plural functions
400212, 400225, 4002361, B41J 2334
Patent
active
047416386
ABSTRACT:
This application discloses an inked ribbon operation device in a printer in which a carriage having printing means is moved in parallel to the platen to perform printing, a reversible motor is supported on the carriage, a pair of spaced ribbon shafts are rotatably supported on the carriage for re-winding the ribbon from one ribbon shaft to the other ribbon shaft, a guide member is supported for holding the inked ribbon between the pair of ribbon shafts for moving the ribbon between the printing position and printed area viewing position, ribbon feed means is disposed between the motor and the ribbon shafts for rotating the ribbon shafts in response to the rotation of the motor in the forward direction, first connection means is disposed between the motor and guide member for moving the guide member to the raised position in response to the rotation of the motor in the forward direction, second connection means is disposed between the motor and guide member for moving the guide member to the lowered position in response to the rotation of the motor in the forward direction and a drive circuit is provided for rotating the motor in the forward direction in response to a printing command and for rotating the motor in the reverse direction at the completion of printing.
REFERENCES:
patent: 4010839 (1977-03-01), Guerrini et al.
patent: 4101006 (1978-07-01), Jensen et al.
patent: 4247210 (1981-01-01), Kacmarcik et al.
patent: 4329072 (1982-05-01), Kacmarcik
patent: 4472073 (1984-09-01), Valle et al.
patent: 4611938 (1986-09-01), Rettke et al.
IBM Technical Disclosure Bulletin, "Variable Lift and Feed Increment Ribbon/Correction Mechanism", Greenlief et al., vol. 26, No. 3B, Aug. 1983, pp. 1580-1582.
Okabayashi Mitumasa
Shiga Norio
Tokyo Juki Industrial Co. Ltd.
Wright, Jr. Ernest T.
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