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RIBBON ADVANCE SYSTEM

IP.com Disclosure Number: IPCOM000024737D
Original Publication Date: 1981-Dec-31
Included in the Prior Art Database: 2004-Apr-02

Publishing Venue

Xerox Disclosure Journal

Abstract

Ribbon advance systems for use with single-strike ribbons must move the ribbon a distance sufficient tc prevent characters from overlapping on the ribbon surface. Since many different font styles are available for today's typewriters and printers, it has been the practice to design ribbon advance mechanisms to allow for the font style having the widest character. This is wasteful of ribbon where a font style not having such wide characters is used. A more efficient use of ribbon can be achieved by utilizing a ribbon advance control, which advances ribbon depending on the font style used. This is done by using a coding stripe on the print element. The coding stripe, if present or absent, for example, is detected by circuitry and decoded by firmware. The firmware, which controls the ribbon advance motor, advances the ribbon appropriately.