CertiGuide to A+ (Core Hardware)  9  Chapter 0111:  Peripheral Devices

Compression and Errors 1 Dot-Matrix

Next to monitors, printers are the second most used output devices for PCs. There are many varieties of printers used by individuals and businesses today.

They range from noisy impact printers used to print multi-formed invoices, to high-resolution color inkjet printers used for printing photographs.

All of these various types of printers can be placed into one of three categories:

• Impact printers
  
  
• Inkjet printers
  
  
• Laser printers
  
  
• Impact Printers

An impact printer works by hitting an inked ribbon with a print head onto the paper. Although they are slow, noisy, and considered antiquated technology, they're still widely used by many businesses that generate multi-formed documents.

The two types of impact printers still in use today are:

• Dot-Matrix
  
  
• Daisy Wheel

Compression and Errors 1 Dot-Matrix