MGMT 1050 Lecture Notes - Lecture 5: Dye-Sublimation Printer, Inkjet Printing
MGMT 1050 Tutorial 5 Notes – Laser Printers
Introduction
• More expensive color printing uses thermal wax transfer or dye sublimation, inkjet, or
laser technology.
• The impression on the paper is sprayed at the paper or laid down on the paper.
• Like displays, printer output can be character based or graphics based.
• Most printers have built-in character printing capability and can also download fonts.
• Nonetheless, much of the output from modern computers is graphics based, even when
text is being printed, since graphics output produces more flexibility.
• The output too many printers takes the form of graphical bitmaps that represent the
required pixels directly.
• Some printers have built-in computing capability and can accept data in the form of a
page description language, predominantly Adobe PostScript or PCL, an industry
standard print command language originally developed by HP.
• The controller in the printer can then convert from the page description language to the
bitmap within the printer itself.
• Memory is provided within the printer to hold the bitmapped image while it is being
printed.
• Nearly all modern computer printers produce their output as a combination of dots,
similar in style to the pixels used in displays.
• There are two major differences between the dots used in printers and the pixels used
in displays.
• First, the number of dots per inch printed is generally much higher than the number of
pixels per inch displayed.
• The number of pixels displayed usually ranges between about 70 and 150 per inch.
• Typical printers specify 600, 1200, or even 2400 dots per inch.
• This difference in resolution is partially compensated for by the second major difference
• The dots produced by most printers are either off or on.
find more resources at oneclass.com
find more resources at oneclass.com
