Main Page | See live article | Alphabetical index A line matrix printer is a computer printer that is a compromise between a lineprinter and a dot matrix printer. Basically, it prints a page-wide line of dots. It builds up a line of text by printing lines of dots. These are often used for printing box labels. They print as rapidly as slow lineprinters, and can print bar codes and other graphics as well. When implemented as impact printers, they can be the least expensive to operate, per page. There are numerous mechanisms. One of the most successful is to use a reliable stored energy printer arranged as a comb, and then move the comb back and forth. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.