Chapter 21 Supporting printers
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bitmap
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a bunch of bits in rows and columns.
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calibration
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The process of checking and correcting the graduations of an instrument or device such as an inkjet printer.
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default printer
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The designated printer to which Windows prints unless another printer is selected
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Devices and Printers window
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a window used in Windows 7 to manage and uninstall printers.
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direct thermal printer
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a type of thermal printer that burns dots onto special coated paper as was done by older fax machines.
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duplex printer
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a printer that is able to print on both sides of the paper.
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duplexing assembly
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Used in a duplex printer, a duplexing assembly contains several rollers, turns the paper around, and draws it back through the print process to print on the back of the paper.
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elevated command prompt window
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a Windows command prompt window that allows commands that require administrative privileges.
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Enhanced Parallel Port (EPP)
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a type of parallel port that transmits data in both directions.
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Extended Capabilities Port (ECP)
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a type of parallel port that is faster than an EPP port.
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extension magnet brush
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a long-handled brush made of nylon fibers that are charged with static electricity to pick up stray toner inside a printer.
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fuser assembly
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a component in laser printing that uses heat and pressure to fuse the toner to paper.
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GDI (Graphics Device Interface)
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a component of Windows that uses a less-sophisticated method of communicating with a printer than other methods. GDI draws and formats the page, converting it to bitmap form, and then sends the almost-ready-toprint bitmap to the printer.
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IEEE 1284
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a standard for parallel ports and cables developed by the Institute for Electrical and Electronics Engineers and supported by hardware manufacturers.
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imaging drum
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an electrically charged rotating drum found in laser printers.
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impact paper
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Paper used by impact printers and comes as a box of fanfold paper or in rolls (used with receipt printers).
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impact printer
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a type of printer that creates a printed page by using a mechanism that touches or hits the paper.
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ink cartridge
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Cartridge in inkjet printers that holds the different colors of ink for the printer.
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inkjet printer
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a type of ink dispersion printer that uses cartridges of ink. The ink is heated to a boiling point and then ejected onto the paper through tiny nozzles.
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laser printer
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a type of printer that uses a laser beam to control how toner is placed on the page and then uses heat to fuse the toner to the page.
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local printer
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a printer connected to a computer by way of a port on the computer. Compare to network printer.
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LPT (Line Printer Terminal)
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assignments of system resources that are made to a parallel port and that are used to manage a print job. Two possible LPT configurations are referred to as LPT1: and LPT2:.
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network printer
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a printer that any user on the network can access, through its own network card and connection to the network, through a connection to a stand-alone print server, or through a connection to a computer as a local printer, which is shared on the network.
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Printer Control Language (PCL)
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a printer language developed by Hewlett-Packard that communicates to a printer how to print a page.
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pickup roller
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a part in a printer that pushes forward a sheet of paper from the paper tray.
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PostScript
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a printer language developed by adobe Systems that tells a printer how to print a page.
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print head
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The part in an inkjet or impact printer that moves across the paper, creating one line of the image with each pass.
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Print Management
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a utility located in the administrative Tool group in Windows 7/Vista professional and business editions that allows you to monitor and manage printer queues for all printers on the network.
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print server
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Hardware or software that manages the print jobs sent to one or more printers on a network.
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print spooler
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a queue for print jobs.
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printer maintenance kit
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a kit purchased from a printer manufacturer that contains the parts, tools, and instructions needed to perform routine printer maintenance.
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printer self test page
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a test page that prints by using controls at the printer. The page allows you to eliminate a printer as a problem and usually prints test, graphics, and information about the printer such as the printer resolution and how much memory is installed.
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Printers and Faxes window
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a window used in XP to manage and uninstall printers.
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Printers window
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a window used in Windows Vista to manage and uninstall printers.
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printui
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The Printer User Interface command used by administrators to manage printers on the local and remote computers.
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raster line
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a row in the bitmap that represents a page that has been rendered and is ready for printing.
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raw data
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Data sent to a printer without any formatting or processing.
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Resolution Enhancement technology (REt)
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The term used by Hewlett-Packard to describe the way a laser printer varies the size of the dots used to create an image. This technology partly accounts for the sharp, clear image created by a laser printer.
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separation pad
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a printer part that keeps more than one sheet of paper from moving forward.
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Services console
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a console used by Windows to stop, start, and manage background services used by Windows and applications.
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spooling
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Placing print jobs in a print queue so that an application can be released from the printing process before printing is completed. _________ is an acronym for (Simultaneous Peripheral Operations Online).
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Standard Parallel Port (SPP)
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an outdated parallel port that allows data to flow in only one direction and is the slowest of the three types of parallel ports. also called a Centronics port. Compare to EPP (Enhanced Parallel Port) and ECP (Extended Capabilities Port).
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thermal paper
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Special coated paper used by thermal printers.
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Direct thermal printer
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a type of line printer that uses waxbased ink, which is heated by heat pins that melt the ink onto paper.
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thermal transfer printer
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a type of thermal printer that uses a ribbon that contains wax-based ink. The heating element melts the ribbon onto special thermal paper so that it stays glued to the paper as the feeder assembly moves the paper through the printer.
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toner vacuum
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a vacuum cleaner designed to pick up toner used in laser printers and does not allow it to touch any conductive surface.
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tractor feed
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a continuous feed within an impact printer that feeds fanfold paper through the printer rather than individual sheets, making them useful for logging ongoing events or data.
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transfer belt
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a laser printer component that completes the transferring step in the printer.
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transfer roller
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a soft, black roller in a laser printer that puts a positive charge on the paper. The charge pulls the toner from the drum onto the paper.
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XPS (XML Paper Specification)
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a standard introduced with Windows Vista and designed to ultimately replace GDI as the method Windows uses to render a printed page before sending it to the printer.
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XPS Document Writer
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a Windows 7/Vista feature that creates a file with an .xps file extension. The file is similar to a .pdf file and can be viewed, edited, printed, faxed, emailed, or posted on Web sites.
