Typewriting machines – Including interposed inking device for record-medium – Means auxiliary to ribbon mechanism
Patent
1991-06-17
1992-11-03
Eickholt, Eugene H.
Typewriting machines
Including interposed inking device for record-medium
Means auxiliary to ribbon mechanism
400120, 400208, B41J 3332
Patent
active
051602059
ABSTRACT:
There is disclosed a thermal printer for printing on webs of record members such as tags and labels. The printer has a wide print head which can print on either a wide web or on a narrow web. When printing on a narrow web, pressure contact is relieved or minimized between the portion of the platen roll and printing elements beyond the side edge of the web to minimize wear as the platen roll rotates. This is accomplished by inclining the print head and platen roll relative to each other. In order to promote uniform tension in the ink ribbon, an adjustable guide is provided along the ink ribbon path. The guide can be adjusted in a flat plane. The guide is maintained perpendicular to the direction of ink ribbon travel and promotes uniformity of tension across the width of the ink ribbon and consequently enables tracking to be optimized.
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patent: 4673304 (1987-06-01), Liu et al.
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patent: 4776714 (1988-10-01), Sugiura et al.
patent: 4997298 (1991-03-01), Uchimura et al.
"Ribbon Feeding Device" IBM Tech. Disclosure Bulletin, vol. 2, No. 5, Feb. 1960, p. 5.
"Adjustable Ribbon Tracking Device" IBM Tech. Disclosure Bulletin, vol. 16, No. 6, Nov. 1973 pp. 1751-1752.
Eickholt Eugene H.
Grass Joseph J.
Monarch Marking Systems, Inc.
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