what is a printer?

Advantages and disadvantages of thermal printersA printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing.

Features of impact Printer

The general features of impact printer are-

  • They create the characters by striking  the paper.
  • They print on most types of paper.
  • Multiple (carbon) copies may be printed at once

Disadvantages of impact printers

  • They are relatively slow
  • They do not print transparencies (documents printed on clear plastic film for use with over head projector.
Dox –matrix are impact printer that draw a character from a series of dots. They are suitable for draft copies and home use, where the quality of finished document is not critical. They are also use for preparing of bills and invoices in hospital because they are cheap and durable.
Other printer- laser printer, inkjet printers, thermal printers, dye sublimation colour printers, plotter printers.
Non-impact printer: non-printers are much quieter than impact printer as their printing heads do not strike the paper. The general features of non-impact printer are.
  • The printer head does not make contact with the paper.
  • Higher speed in characters per second is possible.
  • They print on most types of paper but better quality is obtained with better paper.
  • Transparencies are usually supported.
Other printer laser printer, inkjet printer, thermal printer, dye sublimation colour printer, thermal dye printers and plotters.

advantages of impact printers

1. Low cost of consumables (Ink) because they use multi-pass ribbons

2. Can print on multi-part forms (Carbon or Carbonless)

3. Can print on page sizes other than 8 1/2 x 11 You can get custom sizes

4. There are specialty impact printers that can have multiple forms loaded simultaneously and be selected by software. 

 

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