Abstract
The general principle of printing is defined in which a recording surface is drawn past a single row of writing points for recording text in mosaic form in line-at-a-time mode. This principle is assessed for diverse methods of recording. Details ere given of recording by magnetic means. A system for addressing magnetic recording heads has been developed and detailed discussion is given of basic design considerations, both for general addressing systems, and for the particular case of a printer having 132 character per line, 9 mosaic columns per character, and a character repertoire of 96, for use on a 2400 baud channel. Operation at 1800 lines per minute has been achieved and a specimen of the print quality obtained is given. Recommendations and suggestions for further work and system extensions conclude the study.