COLOUR PRINTERCOMPILLED BY :-

MAHNOOR MUGHAL SADDIQ

9-C-SILVER

IMAGES

INTRODUCTION

In computing, a printer is a peripheral which produces a representation of an electronic document on physical media such as paper or transparency film. Many printers are local peripherals connected directly to a nearby personal computer. Individual printers are often designed to support both local and network connected users at the same time. Some printers can print documents stored on memory cards or from digital cameras and scanners. Multifunction printers (MFPs) include a scanner and can copy paper documents or send a fax; these are also called multi-function devices (MFD), or all-in-one (AIO) printers. Most MFPs include printing, scanning, and copying among their many features.

COLOUR INKJET PRINTERS

Inkjet printers works by propelling

droplets of ink onto the paper. The ink is

released from small movable cartridges

and if it is a colour inkjet printer there

will regularly be a black cartridge and

three separate coloured cartridges. You

can either replace the whole cartridge or

refill the cartridges with a special refill kit.

Advantages•Inkjet printers are considerably

cheaper to buy.

•High end printers are capable of

producing good ability images when

used with special paper.

•Most models are relatively light

weight and compact so they don't

take up too much space on the desk

ADVANTAGES AND DISADVANTAGES

•Disadvantages•Due to the cost of ink, running an

inkjet printer over time is a more

expensive than a laser printer.

•Prints emerge from the printer

slightly wet and may need time to

dry.

•Printing is slower and therefore

inkjets aren't designed for high

volume printing.

LASER PRINTER

This printer incorporates a laser beam

as a part of the image processing. Rather

than using ink a laser printer uses toner, a

dry plastic powder combined with carbon

black or colouring agents. The consumable

a part of the printer is encased in a

cartridge which needs to be supplanted

from time to time

Advantages• Laser prints are generally very high

and very accurate.

•For high volume printing laser printers

are considerably cheaper to run.

•Printing is fast so they can cope large

volumes.

•Due to the technology used prints from

a laser printer emerge from the printer

dry to the touch.

ADVANTAGES AND DISADVANTAGES

•Disadvantages •Buying a laser printer can be

expensive when compared to an inkjet.

•Colour laser printers are significantly

more expensive than a colour inkjet.

•Laser printers are larger and heavier

as they need to comprise the imaging

drum and laser technology.