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Cassette Containing Both Ribbon and Print Head

IP.com Disclosure Number: IPCOM000051657D
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Crooks, W: AUTHOR [+3]

Abstract

A cassette is shown which contains both the ribbon and the print head for an electrothermal printer.

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Cassette Containing Both Ribbon and Print Head

A cassette is shown which contains both the ribbon and the print head for an electrothermal printer.

The ribbon 10 is transported from one spool within the cassette, but in its path it passes over a flexible-type resistive ribbon print head 12. As it is transported over the head, the ribbon is supported by two plastic guides 14 which are adjacent to the print head, but do not touch the print head. The guides 14 serve to transport the ribbon over the head, maintain the ribbon in contact with the print sheet, and keep the ribbon taut in the printing area.

The cassette contains an unwind spool 16, a rewind spool 18, and a connector 20 to provide electrical signals to the electrodes within print head 12. The cassette is designed so that when inserted into a typewriter, the cassette is positioned so that the ribbon is adjacent to the print sheet contained on the typewriter platen. The insertion of the cassette also causes both electrical and mechanical connection to be made between the cassette and the remainder of the typewriter so that the cassette becomes an integral part of the typewriter.

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