High-speed printers

The distinction between serial and parallel printers and between stoppable and continuous running printers is drawn, and some of the features found in high-speed printers are discussed firstly as regards the document to be produced, and secondly as regards the inclusion of the printer in a data processing system. A comparison of on-line and off-line methods of connection follows. In the brief survey of printing principles used in high-speed printers, both mechanical and non-mechanical types are treated. A short section on checking is followed by comments on future trends in high-speed printers, including the possibility of re-entry.