# Glossary

bitmap font
  The dot-by-dot representation of a font. Bitmap fonts are displayed on a computer screen and printed on a dot matrix printer. See outline font.

buffer
  To receive and store print data in memory.

character set
  A collection of letters, numbers, and symbols used in a particular language.

cpi (characters per inch)
  A measure of the size of fixed-width text characters.

default
  A value or setting that takes effect when the printer is turned on, reset, or initialized.

developer cartridge
  A component of the printer that contains the toner that creates the printed image on paper.

dots per inch (dpi)
  The number of dots per inch is a measure of printer resolution. The higher the number of dots, the higher the resolution.

download
  To transfer information from the computer to the printer.

downloaded font
  A font that is loaded into the printer's memory from an outside source, such as a computer. Also called soft font.

dpi
  See dots per inch (dpi).

driver
  The part of a software program that converts commands from the program into commands used by the printer. Also known as the printer driver.

emulation
  See printer emulation.

fixed-width font
  A font whose characters are allotted the same amount of horizontal space, regardless of the width of the character. Thus the uppercase M receives the same amount of space as the letter l.

font
  A set of characters and symbols that share a common typographic design and style.

font family
  The collection of all sizes and styles of a font.

halftone
  A grayscale image that is composed of small dots. The dots can be close together to create black, or more widely spaced to create gray or white areas in the image. Newspaper photographs are common examples of halftones.

initialization
  The act of returning the printer to its defaults (fixed set of conditions).

interface
  The connection between the printer and the computer. A parallel interface transmits data one character or code at a time, and a USB interface transmits data one bit at a time.

landscape
  Printing that is oriented sideways on the page. This orientation gives you a page that is wider than it is high and is useful for printing spreadsheets.

memory
  The part of the printer's electronic system that is used to store information. Some information is fixed and is used to control how the printer operates. Information that is sent to the printer from the computer (such as downloaded fonts) is stored in memory temporarily. See also RAM and ROM.

orientation
  Refers to the direction in which characters are printed on a page. This direction is either portrait or landscape.

outline font
  A font whose outline is described mathematically, allowing it to be rendered (printed or drawn) smoothly at any size.

photoconductor unit
  A component of the printer that contains a light-sensitive print drum which permanently fixes the toner onto paper.

pitch
  A measure of the number of characters per inch (cpi) for fixed-width fonts.

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 replicate existing printers, such as the HP LaserJet4.

proportional font
  A font whose characters have varying amounts of horizontal space depending on the width of the character. Thus the uppercase M takes up more horizontal space than the lowercase l.

RAM
  Random Access Memory (RAM) is where temporary information is stored.

resolution
  A measure of the fineness and clarity of images produced by the printer
  or monitor. Printer resolution is measured in dots per inch. Monitor resolution is measured in pixels.

RITech
  Resolution Improvement Technology. A feature that smooths the jagged edges of printed lines or shapes.

ROM
  Read Only Memory (ROM) is where permanent information is stored.

status sheet
  A report that lists the printer settings and other printer information.

symbol set
  A collection of symbols and special characters. Symbols are assigned to specific codes in a character table.

TrueType
  An outline font format that was developed jointly by Apple Computer and Microsoft Corporation. TrueType fonts are outline fonts that can be easily resized for screen display or for printing.

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