a printer that produces an entire line of output at a time.
Origin of line printer
First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an electromechanical device that prints a line of characters at a time rather than a character at a time, at speeds from about 200 to 3000 lines per minute: used in printing and in computer systems
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012