Recorders – Thermal recording
Patent
1987-01-07
1988-09-27
Goldberg, E. A.
Recorders
Thermal recording
400120, G01D 1510
Patent
active
047745258
ABSTRACT:
A thermal transfer type multicolor printer including: a frame; a sprocket wheel, rotatably mounted to the frame, for feeding a printing paper, having feeding holes, in one of both a forward direction and a reverse direction in a selective manner, the sprocket wheel having sprocket pins mounted thereon adapted to engage feed holes of the printing paper for feeding the printing paper, the feed holes each having a trailing edge, and the sprocket wheel being adapted to rotate at a first foward peripheral speed when the printing paper is fed in the forward direction for printing and at a first reverse peripheral speed when the printing paper is fed in the reverse direction; a platen roller, rotatably mounted on the frame and adapted to rotate at a second forward peripheral speed for feeding the printing paper in the forward direction and at a second reverse peripheral speed for feed the printing paper in the reverse direction; a thermal head for transferring a heat dissolving ink of an ink ribbon, set over the platen roller through the printing paper, to the printing paper, and a rotation mechanism, mounted to the frame, for simultaneously rotating both the platen roller and the sprocket wheel for feeding the printing paper.
REFERENCES:
patent: 4551729 (1985-11-01), Lubo et al.
Ishiyama Kiyoshige
Kawano Junji
Mitsushima Susumu
Okuno Takeshi
Goldberg E. A.
Shinko Electric Co. Ltd.
Tran Huan H.
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