Printer is a hardware which is connected to the computer. The printer has a function as a tool for printing or displaying the data in printed form, either in the form of images or text from paper to the computer or the like. The printer has the parts and also there are several types.
Some parts of the printer, namely:
* Picker as a means of taking the paper from the tray.
* Tray place to put the paper.
* Ink or toner as a printer, which is used to write on paper.
Toner and Ink has different systems;
- Laser Toner or printer tools that need heating
- Ink or Inkjet printer tools that do not need heating, only the cleaning of the print-head printer.
As for the printer type, there are four kinds. Here's a fuller explanation of the types of printers:
1. Dot Matrix Printers
Dot Matrix Printer is a printer that uses the ribbon as a means of printing. Because using ribbon to display the output to the paper, the results of the dot matrix printer printing rather coarse and less good. By using this printer, prints can be directly coupled together with carbon. Because the printing system still uses the system beats. Since using the tape as a source of color, the color can be made was not varied. Only black, blue, and red only. And rarely are able to use all three of these colors at once.
Print resolution is still very low, because the printed image will look like dots are interconnected.
This type of printer performance speed is measured by the number of characters that can be printed per second with the unit cps (characters per second). Some of these printers speed of 500 cps.
To connect with the CPU still using the parallel port.
Although the current printer technology has been increasingly sophisticated, yet still produced a dot matrix printer. For dot matrix printers can be used to print a copy of the document, which is usually used to create invoices, receipts, and other financial documents.
* Pros:
- Can print copies at once.
- Can print paper size width.
- The cost of the printer and ink (Ribbon) cheap.
* Weaknesses:
- Dpi and low ppm
- Slow motion
- His voice is noisy when working
- The color produced is not varied.
2. Ink Jet - Desk Jet - Jet Buble
Inkjet printing is a tool that uses ink to print. Inkjet available in the market today have the ability to print to paper size is very large, and with excellent quality.
Resolution inkjet printers today can reach 5760 × 1440 dpi. At Ink jet printers use dor technology on demand, ie by spraying tiny dots of ink on paper through a nozzle or a very small hole in the pipe. Other technologies developed by manufacturers such as Canon and HP printers using the heat, the heat can make bubbles of ink so that if the more heat will further depress the nozzle to the specified ink and printed on paper. Because it uses liquid ink prints wait a few seconds in order to dry.
This type of ink jet printer ink placement and filling can be modified by infusion techniques, namely by adding a special ink tube on the outside of the printer and connected with a small hose to be connected on the printer in the printer engine.
* Pros:
- Dpi & ppm higher than the dot matrix
- It's easier to print images and colors
- Ability to print to paper width with good quality
* Weaknesses:
- Unable to print double
- Operational costs more expensive
- When printing becomes longer
3. Laser Jet Printer
LaserJet printer is a type of most good quality compared to the previous two types of printers. Print tool does not use ink but using powdered toner and printing using infrared.
This printer also offers high-speed printing. Even machines that belong to the class lower than even this laser class still has a high speed compared with Ink Jet printer or dot matrix. At least two times faster than inkjet printers. Work similar to laser printers photocopy machine, which uses photographic drum. The resulting print quality is also pretty sharp in addition to fast.
The laser printer is ideal to use for those who print a very high frequency. Usually it is the office of office. However, it is also the user's home using a laser printer. Just for color laser printers are the same quality with inkjet, the price can be two times larger than the inkjet printer itself.
* Pros:
- Dpi, very high ppm
- Efficient to print in black and white
- The capacity of more color than other indoor printer.
- The ability to print very quickly
* Weaknesses:
- High operational costs
- Can not be used continuously.
4. Thermal Printer
Thermal printers are very different and distinct from the normal inkjet printer or laser printer. Just as the name suggests, thermal printers use heat to print on paper, not the ink cartridges used by other types of printers. With this technology, makes thermal printer is not noisy (even some kind of no sound).
This printer can also print out very quickly because it does not use the pins as the dot matrix printer. This printer has a higher price on the dot matrix, but instead with an excess of dimiliknya was causing thermal printers are widely used.
* Some uses thermal printers are:
- Print receipt at the gas station
- Queuing engine
- ATMs
- Information kiosks
- Point of sales systems like at the checkout
- Etc.
To use this printer depends on efficiency, needs, quality and quantity of print-outs that we want. That's a little explanation about 4 Type Printer, may be useful.
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