Printers

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Inkjet Printer

How it works?

An inkjet printer is any printer that places extremely small droplets of ink onto paper to create an image. If you ever look at a piece of paper that has come out of an inkjet printer, you know that:

  • The dots are extremely small
  • The dots are positioned very precisely, with resolutions of up to 1440x720 dots per inch.
  • The dots can have different colors combined together to create photo quality images.

Advantages

The advantage of using an ink-jet printer is that they offer excellent colour output and are cheaper than laser printers. An inkjet printer also has a much faster response compared to other printers.

Disadvantages

The disavantage is that they are much slower than laser printers, particularly when printing text, and the ink cartridges have to be replaced quite frequently.

 

 

 

 

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Colour Laser Printer

How it works?

Laser printers work through electronically charging a piece of paper with the digital images selected for printing. They use a type of powdered ink called toner, which sticks to the paper where it has an electronic charge and is permanently melted to the paper using a hot fusing wire.

Advantages

Laser printers are much more efficient than ink-jet printers, capable of producing several thousand prints from one toner cartridge. The advantage of using a laser printer is that it produces a high quality print, very quickly and quietly.

Disadvantages

The disadvantage is that colour laser printers are very expensive and tend to produce images that have a shiny, artificial look. They are more suited to printing text than graphics.

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Dye-sublimation Printer

What is it?

A dye-sublimation printer produces better-quality images than other common types of printers, such as inkjet and laser units. Instead of sending out a stream of liquid ink to stain the page, the dye-sublimation printer heats up a special type of solid ink that changes into a gas when it is heated without passing through a liquid phase. This printing method also is known as thermal dye-transfer printing and dye-diffusion printing.

Advantages 

The dye sublimation printer can produce much better quality imagesDye-sublimation printers allow you to print photo-lab-quality pictures at home. Individual dots can be distinguished at a relatively close distance, making digital pictures look less realistic.

Disadvantages

There are a few printing issues that you may come across when using a dye sublimation printer. Using a dye sublimation printer is also not necessarily useful when printing out pictures or photos due to paper issues.

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Solid ink printer

What is it?

Sold ink printers use sticks of wax which are melted and applied to the paper.

Advantages

Due to the way solid ink printers put the ink onto the page, print quality is considered to be excellent with lively colors. Excellent results can be achieved with low-quality stock, as the wax covers the stock with a glossy surface. Solid ink printers are able to print on many different types and thicknesses of media. They are much less sensitive to changes in media type than are color laser printers. They also have low running cost of time as they are cheap to run.

Disadvantages

Solid contaminants in ink blocks can clog printhead nozzles when using original or compatible inks, and may require costly printhead replacement.When the device is cold, the first page may take several minutes to print.

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CRT monitor

What is it?

A CRT monitor contains millions of tiny red, green, and blue phosphor dots that glow when struck by an electron beam that travels across the screen to create a visible image.

Advantages

CRT monitors hold over their competition is price. CRT monitors are typically much more affordable than LCD monitors with comparable components. A CRT monitor will retain the same picture quality no matter what angle you look at it from, giving these monitors more flexibility when it comes to placement, distance and view angle. CRT monitors are capable of displaying more vibrant and detailed color than some of the competition. This added color accuracy makes CRT monitors better for graphic designers, gamers and media-lovers who can't afford a high-quality HD display.

Disadvantages

Eye strain (CRTs tend to flickr unless set to really high refresh rates). Size - Generally higher power consumption than LCDs

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Flat screen monitor

What is it?

Flat screen monitors are the newest type of monitor and are now the most used in technology

Advantages

Flat-screen monitors use low amounts of power.They are far lighter and thinner.One of the final advantages of flat panel computer monitors deals with the environment. These monitors are much more environmentally friendly

Disadvantages

Flat screen monitors and much more expensive that the CRT monitors. Although flat panel computer monitors are newer, they still can't compete with the color quality of CRT monitors

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