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Ess. 220-701
Chapter 15 Learning Printing
Question | Answer |
---|---|
impact printer | Uses pins and inked ribbons to print text or images on a piece of paper. |
dot-matrix printer | Printer that create each character from a dot array.Pins striking a ribbon against the paper. |
printwires | Grid of tiny pins in a pot-matrix printer that strike a inked printer ribbon to produce images on paper. |
printhead | Case that holds printwires in a dot-matrix printer. |
near-letter quality (NLC) letter quality | Designation for dot-matrix printers that use 24-pin printhead. |
Inkjet printer a.k.a. ink dipersion printers | Uses liquid ink, sprayed through a series of tiny jets, to print text or images on a piece of paper. |
ink catridges | Small containers of ink for inkjet printers. |
print resoluion | Quality of a print image. |
dots per inch (dpi) | Measure of printers solutions that counts the dots the device can produce per linear(horizotal) inch. |
pages per minute (ppm) | Speed of a printer. |
Dye-sublimation printers | Printers that use a roll of heat-sensitive plastic film embedded with dye,which are vaporized then solidified onto specially coated paper |
Thermal printers | Printers that use heated printheads to create high-quality images on special or plain paper. |
laser printers | Electro-photographic printer in which a laser is used as the light source |
toner cartridge | Object used to store the toner in a laser printer. |
photosensitive drum | Aluminum cylinder coated w/ particles of photosensitive compounds. Used in laser printer and usually contained with the toner cartridge. |
erase lamp | Component inside laser printers that uses light to make the coating of the photosensitive drum conductive |
primary corona | Wire located near the photosensitive drum in a laser printer, charges w/ high voltage to form a electrical field, passing voltage to photosensitive drum, charging particles on the surface of the photosensitive drum. |
laser | writing mechanism for the printer. |
toner | fine powder made up of plastic particles bonded to iron particles. |
transfer corona | thin wire, usually protected by other thin wires, that applies a positive charge to the paper during the laser printer process, drawing the negatively charged toner particles off the drum and unto the paper. |
static charge eliminator | Device used to remove the static charge. |
fuser assembly | Mechanism in laser printers that uses two rollers to fuse toner to paper during the print process. |
Solid ink printers | use solid stick of non-toxic "ink" melted then absorbed into paper fibers. |
American Standard Code for Information Interchange (ASCII) | contains av variety of control codes for transferring data, 8-bit characters used to define text characters, made of 96 upper and lower case letters. |
PostScript | Language define by Adobe Systems Inc. for describing how to create an image on a page. The description is independent of resolution of the device that will actually create the image. |
printer control language (PCL) | Printer control language created by Hewlett-Packard and used on a board cross-section of printers. |
graphical device interface (GDI) | Component of Windows that utilize the CPU rather than the printer to process a print job as a bitmapped image of each page. |
XML Paper Specification (XPS) print path | provides several improvements over GDI, including enhanced color management and better print layout fidelity. Requires a driver that support XPS. |
parallel port | Connections for the synchronous, high-speed flow of data along parallel lines to a device, usually a printer. |
IEEE 1284 standard | standard governing parallel communication/ |
DB-25 connector | DB Connector (female), commonly referred to as a parallel port connector. |
Centronics connectors | Connector used w/ older printers |
Calibration | Process of matching the print output of a printer to the visual output of a monitor |