Typewriting machines – Sheet or web – For feeding web record-medium
Patent
1985-12-26
1990-08-14
Burr, Edgar S.
Typewriting machines
Sheet or web
For feeding web record-medium
101288, B41J 1130
Patent
active
049482823
ABSTRACT:
The invention provides a drive device for a thermal transfer printer of the type which includes a thermal head for printing data on a label on a mount by way of an ink ribbon. A platen roller contacts the mount having a label thereon. The mount is also contacted by the thermal head so that the mount may be fed by a rotational frictional force of the platen roller. Sprockets are mounted for free rotation and for engagement in sprocket holes formed in the mount. Thus, a mount having a label thereon is fed by a rotational frictional force of the platen roller which is contacted under pressure by the thermal head. As the mount is fed, the movement thereof is guided and hence corrected by the freely rotating sprockets. As a result, the mount can be transported assuredly without causing meandering or slipping thereof, thereby allowing high quality printing to be attained without dislocation of printed symbols.
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Hamada Motonobu
Hirosaki Yukihiro
Koike Seiji
Ohata Takahiko
Burr Edgar S.
Keating Joseph R.
Tokyo Electric Co. Ltd.
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