Modern printers can be categorized into several types
Impact, ikject, dye-sublimation, thermal, laster, 3-d, and virtual
All-in-one printer
Wireless
Print in color
Usually Print fast
Types of prints
Dot Matrix - not used anymore
Inkjet - Most common for home
Laser - most common for office
All in one- small offices and sometimes homes
Inkjet cartridges
There is a black cartridge
Network Printer
Directly connected to an internal or external network
Printer runs a server listening for connections to run print jobs
Provides cloud access to print directly to a printer
Dye-Sublimation Printers
High printers
Use Cyan, Magenta, Yellow, and Black method of color print
Cost more money
Slower than most printers
Thermal Printers
Mostly used for black and white printing
Thermal wax printers require a special kind of paper to print on
Laser Printers
Laser printers use elctro-photographic imaging to produce high-quality and high-speed output of text and graphics They use photoconductive compounds - when exposed to light will conduct electricity
use toner cartridges
Toners have several mechanical parts that usually get a lot of wear and tear
The black toner used in the laser printers is typically carbo mixed into polyester resin
Color toner trades carbon for the other pigments
3-D Printers
Home use printers use
use plastic filament to create 3-D models
Virtual Printers
Print to PDF
Print to XPS
Print to Image
Cloud and Remote Printing
Printer Languages
ASCII
PostScript
HP Printer Command Language (PCL)
Windows CDI and XPS
XPS
Scanners
Can make digitial copies of existing paper photos, documents, drawings, etc.
Flatbed scanners are the most common variety of scanner
Some scanners and multifunction devices have an automatic document feeder (ADF)
The scanning software that controls the hardware can be built into applications or stand alone
Default driver are the traditional TWAIN drivers
GNU Image manipulation Program (GIMP) is open source image editor
Some scanners offer a feature called optical character recognition
Scanners convert the scanned image into a grid of pixels (dots)
Max number of pixesl or resolution dtermines how good an image it can scna
Optical resolution is native and softwrae based resolution is useless
The color depth of a scan defines the number of bits of information the scanner can use to describe each individual pixels