Epson ActionLaser 1500 User Manual - Page 257

A method of checking the reliability of data transmission between the computer and printer. pitch A measure of character width. Characters can be fixed pitch, where the width is the same for all characters, or proportionally spaced, with varying widths. Pitch is a measure of the number of characters per inch (cpi) for fixed-pitch fonts. point size The height of a particular typeface as measured from the top of the tallest character to the bottom of the lowest. A point is a typographic unit of measure equivalent to 1/72 of an inch. portrait Printing that is oriented upright on the page (as opposed to landscape, in which printing is oriented sideways on the page). This is the standard orientation for printing letters or documents. printer driver See driver. printer emulation A set of operating commands that determines how data sent from the computer is interpreted and acted upon. Printer emulations can emulate existing printers, such as LaserJet IIP, LaserJet III, LQ, and FX. Glossary GL-7