Typewriting machines – Platen or platen-moving mechanism – Cylindrical platen
Patent
1991-06-07
1993-04-27
Burr, Edgar S.
Typewriting machines
Platen or platen-moving mechanism
Cylindrical platen
193 37, 492 25, B41J 11057
Patent
active
052056635
ABSTRACT:
A printing mechanism such as a thermal printer includes an elastomer coated platen having a circumference smaller than the printing length of an image to be reproduced on a print medium. The platen has a width which is wider than the width of the print medium. The platen includes a rigid central longitudinally-disposed shaft, and opposing end sections. Each end section extends under the nearest edge of the print medium from an associated end of the platen, and includes means for coupling a contacting print medium to a rotation of the shaft. In a preferred embodiment, the coupling means is formed of a non-elastomeric thin-walled cup either disposed near the surface of the platen within the elastomer coating or at the surface of the platen with a thin layer of fine grit particles formed thereon. Each thin-walled cup is fixedly connected to the shaft by a rigid torsion coupling member.
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Goodwin William D.
Stephenson Stanley W.
Burr Edgar S.
Eastman Kodak Company
Owens Raymond L.
Raciti Eric P.
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