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Browse Prior Art Database

MULTICOLOUR TYPEWRITER

IP.com Disclosure Number: IPCOM000023791D
Original Publication Date: 1979-Feb-28
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 188K

Publishing Venue

Xerox Disclosure Journal

Abstract

A typewriter of the kind having a moving typing element I and a fixed platen 2 for use with a multi-colour ribbon 3 which is composed of a series of differently coloured lengths connected end-to-end, The ribbon spools 4 are fixed to the

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XEROX DISCLOSURE JOURNAL

MULTICOLOUR TYPEWRITER
E. R. Brooke
R.Z. Marlow

Proposed Classification
U.S. CL 197/151

mt. Cl. B41j 33/14

A typewriter of the kind having a moving typing element I and a fixed platen 2 for use with a multi~colour ribbon 3 which is composed of a series of differently coloured lengths connected end~-to-~end, The ribbon spools 4 are fixed to the

machine frame and the ribbon is held stationary and under slight tension during typing. Fresh ribbon is advanced at the end of each typed line proportionately to the length of the line. The two spools 4 are driven by separate motor (not shown).

Colour selection is by manual switches initiating highspeed advance (or reverse) of the ribbon to the selected colour portion. Voltage is applied to both motors during ribbon advance, tension being maintained by slightly lower voltage to the supply spool motor. During typing, tension in the ribbon is maintained by the motors applying slight equal and opposite forces.

2

Volume 4 Number 1 January/February 1979 29

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