CTRL-P.CMD - Toggles Printer Echo On And Off Freeware From Digital Research CTRL-P is a software "switch" to toggle printer echo on and off. It per- forms exactly the same function (from software) as physically pressing the CTRL-P key combination on the keyboard. When invoked from the command line or from a SUBMIT file, CTRL-P turns ON printer echo. Following the command, all output to the console (screen) is also sent to the printer. When invoked a second time, CTRL-P turns OFF printer echo, and output to the console is no longer sent to the printer.