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Modified Printer Having All-Points-Addressable and Graphics Capability

IP.com Disclosure Number: IPCOM000040702D
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02

Publishing Venue

IBM

Related People

Authors:
Barksdakem, ID Krieg, ML Long, TH [+details]

Abstract

A resistive ribbon printer, which does not support all-points-addressable (APA) or graphics fonts, is capable of printing APA and graphics data through inactivating the printer's fonts and supplying data serially to the printer from a random-access memory (RAM) when a personal computer (PC) provides signals that such APA and/or graphics data are to be printed. A printer control card 1 produces FNTCLK signals to a font card 2 having fonts A and B therein. The FNTCLK signals cause either characters from the font A or the font B to be supplied to the printer control card 1 from the font card 2.