Epson EPL-7500 User Manual - Page 231

parity A method of checking the reliability of data transmission between the computer and printer. 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 l/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 mode A set of operating commands that determines how data sent from the computer is interpreted and acted upon. Printer modes can emulate existing printers. The EPL offers three printer modes: PostScript, I'S binary, and HP emulation. RAM Random Access Memory. The portion of the printer's memory used as an input buffer and for storing downloaded fonts and graphic images. Information stored in RAM is volatile and is lost when the printer power is turned off. reset To return a printer to its defaults, by use of a command, interface signal, control panel, or by turning the printer off and on. ROM Read Only Memory. The portion of the printer's memory that is permanent. Information stored in ROM is used to control how the printer operates. Resident fonts are also stored in ROM. GL-6 Glossary