Typewriting machines – Having power-driven operator for plural functions
Patent
1984-02-03
1985-07-02
Burr, Edgar S.
Typewriting machines
Having power-driven operator for plural functions
400225, 400229, 400320, 400322, 400323, B41J 3322, B41J 1920
Patent
active
045264864
ABSTRACT:
Disclosed is a serial printer comprising a carriage loaded with a printing head and moved in the horizontal direction, wherein a motor is contained in the carriage, a pinion is attached to a rotor shaft of the motor, a rack engaged with this pinion is attached onto a guide rail for movably supporting the carriage and the carriage loaded with the printing head is moved along the rack by rotating the pinion engaged with the rack by rotation of the motor.
In this serial printer, the power loss of the motor due to the presence of an intermediate power transmitting member indispensable for the conventional printer, such as a wire rope, a toothed belt or a screw shaft, can be eliminated, and occurrence of troubles due to stretching or deformation of this intermediate power transmitting member is prevented. Accordingly, the capacity of moving and positioning the printing head is increased. Furthermore, since the carriage is of the self-running type, it is possible to adopt an embodiment in which at least two carriages are mounted on one printer and they are independently moved to effect the delivery operation. Accordingly, the printing speed can be increased and multi-color printing can be performed.
REFERENCES:
patent: 3776340 (1973-12-01), Moser
patent: 3882988 (1975-05-01), Sloan et al.
patent: 4011932 (1977-03-01), Wurscher et al.
patent: 4332492 (1982-06-01), Thern et al.
patent: 4461588 (1984-07-01), Watanabe et al.
Itaya Takashi
Kikuchi Hiroshi
Koshida Yoshinori
Tanuma Jiro
Berger Peter L.
Burr Edgar S.
OKI Electric Industry Co., Ltd.
Pearson Charles A.
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