Type of printers pdf


















They should also have a relatively low cost of consumables that aims to save businesses money over the long run. However, lately we've seen a few color laser multifunction printers drop to surprisingly low prices.

Disadvantages They are big and they take large space in an office. These printers are expense and a small business company will not be able to afford it. Different printer types have different of these features or specifications.

The most cheapest and commonest in small businesses and homes is the inkjet printers. However, they are not that fast and they will not print so many copies before the ink runs out. Laser printers on the other hand are faster than inkjet printers.

The most common laser jet printers are mono colour printer black and white , and are relatively cheaper that the laser colour printer. Laser printers are usually suitable for big office environment, as they are fast and the cartridge lasts longer with so many print outs.

However, when printing photos, ink jet do a better job as they have a higher print resolution. Higher resolution means higher quality images. Printer resolution is measured in dots per inch dpi. Generally, dpi resolution works great for text documents, while you will probably want dpi or better resolution for printing images.

If u intend to print photos a lot, an inkjet is ideal, but if u intend to print lots of text, a laser jet will be the best option. Speed When you in a busy office, a faster printer is ideal.

Inkjets are not known for their speed, but laser jets are. Speed is easu ed t o ways: in characters per second cps or in pages per minute ppm. Either way you want a higher number if you want to have a faster printer. Printers usually slow down quite a bit when printing pages with a lot of complicated graphics, or color images. However, the ink for most ink jet printers costs a lot of money. Inkjet printers use ink cartridges that runs dry at a faster speed.

Laser printers use toner cartridges filled with the black powder that is found in copy machines. Laser toner cartridges last a lot longer than inkjet cartridges, but they also cost significantly more. But the benefit of toner cartridges is that they can print so many print outs as the ink jet. This is because the ink jets print at higher resolutions and can print complex graphics and pictures faster than the laser jet printers.

Laser printers also have their own memory, or RAM, just like a computer. This memory is used to store pages before they are printed. Memory is important for printing complex or high-resolution images.

Most laser printers have anywhere from 2 MB to 8 MB of memory. As such, one needs to know the memory of the printer one is buying, the more memory it has, the better and faster. A buffer enables a faster device such as a computer to complete sending the data and begin another task without waiting for a slower device such as a printer.

Computers are a lot faster than most printers are, so they can send information faster than the printer can accept it. A printer buffer or spooler fixes this problem. A print buffer works like a dam: it holds back the information and releases it at a rate that the printer can handle. A printer with a larger buffer size will print faster than a printer with a smaller buffer size.

To sum up this, one needs to know what he or she needs the printer for. As we have seen above, different makes and types of printers have different characteristics, and the most important include print speed, print resolution, ink price and durability, and printer cost.

Inkjet printers use Cyan, Magenta, Yellow and Black inks. Using these four basic colors, inkjet printers generate all other colors. These printers are very popular due to their high quality and low cost, despite the ink cartridge been expensive in due course.

These have a high quality text print, high speed and are high cost printers. In such type of printers, printing is done, using laser beam and black magnetic powder, called Toner. Speed of these printers can range from 10 pages per minute to about pages per minute. They cost much higher than the inkjet printers. However, the toner cartridge lasts for longer time with lots of print cycles as compared to the ink jet.

These printers are ideal for larger offices, and school environments. They need to consider the environment that the printer will be in, and what jobs the printer will be doing. As such, basic knowledge of the printer specifications can help a lot for one to choose the right printer. The speed, resolution, and the costs of the ink cartridge or toner of the printer.

In a busy office, a laser jet is ideal, for home light use, an ink jet does the magic. It will printer photos for family memories at a great beautiful colorful resolution as compared to the laser jet.

But in a busy office, an ink jet printer will slow down the office work flow as people will have to wait for a printer to finish doing a single task and they is also the ink cartridge that will be running out quicker, making the maintenance expensive. As such, the laser jet will do the trick in an office environment.

Printers have undergone evolution since the Daisy Wheel Printers, to the current ink and laser jet printers. Printer have now become faster, and with better resolutions than before.

And they will continue to evolve as computers evolve. They source light from an LED array. This means they work in different ways. With fewer moving parts, some people find the laser printers less reliable than LED printers. Another advantage of LED printers is their size and weight.

The small and light features make it more suitable for small offices. With a rise in the use of digital photos and graphics, we've seen a demand for specifically designed printers. That is how the snapshot printer came about.

This is the best type of printer for image and photo printing. The Snapshot printer is great for families that have a lot of photos to share, or for companies printing posters.

The main advantage of snapshot printers is that they are compact, so you can fit them anywhere. They are two times smaller than inkjet printers, for example. Some even come with battery options, making them as mobile as possible. Photo printers can function without a PC connection. They have an LCD screen where you can view, preview, and select photos for printing.

The screen size varies from model to model, but a good rule of thumb is that the higher the price — the bigger the screen. And the biggest advantage is that you can print a photo in a matter of seconds. There is no need for editing, although the higher end models offer options for drawing on an image, print layouts, and adding captions. Last but not least, there is the multifunctional printer. This printer can be classified as a subcategory.

Inkjet and laser printers can both be multifunctional. But because of recent high demand for these printers, we thought we'd include them as their own category. When multifunctional printers first hit the market, they were expensive. This means that all characters on the line are not printed at exactly the same time, but the time required to print the entire line is fast enough to call them line printers. Typical speeds of drum printers are in the range of to lines per minute. A chain printer uses a chain of print characters wrapped around two pulleys.

Like the drum printer, there is one hammer for each print position. Circuitry inside the printer detects when the correct character appears at the desired print location on the page. The hammer then strikes the page, pressing the paper against a ribbon and the character located at the desired print position.

An impression of the character is left on the page. The chain keeps rotating until all the required print positions on the line have filled. Then the page moves up to print the next line. Speeds of chain printers range from to characters per minute. A band printer operates similar to chain printer except it uses a band instead of a chain and has fewer hammers.

Band printer has a steel band divided into five sections of 48 characters each. The hammers on a band printer are mounted on a cartridge that moves across the paper to the appropriate positions. Characters are rotated into place and struck by the hammers. Font styles can easily be changed by replacing a band or chain. Non-impact printers do not use a striking device to produce characters on the paper; and because these printers do not hammer against the paper they are much quieter.

Following are some non-impacted printers. Ink-jet printers work in the same fashion as dot-matrix printers in the form images or characters with little dots. However, the dots are formed by tiny droplets of ink.

Ink-jet printers form characters on paper by spraying ink from tiny nozzles through an electrical field that arranges the charged ink particles into characters at the rate of approximately characters per second. The ink is absorbed into the paper and dries instantly. Various colors of ink can also be used.



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