An external hardware output device which takes the electronic data stored on a computer or other device to generates a hard copy of it is known as a printer. You can print several copies of a document by using a printer if it is created on your computer. Printer is one of the most popular computer peripherals that is commonly used to print text and photos.
Types of printers:
The two main categories of printer are laser and ink jet. Many printers have the option of copying, scanning and faxing.
Laser printers are costlier than ink jet printers. In this printer toner is used rather than liquid ink. The printing is fast and the quality of the print is clear.
Several pages can be printed at a time without changing a toner cartridge. The parts of your printer will wear out faster if you exceed the "duty cycle" . The cost per page must be taken in to consideration while buying a laser printer. You can figure it out by dividing the the cost of the cartridge by the number of copies provided by each toner cartridge.
Sometimes a laser printer will indicate that the toner cartridge is empty when it is really not. This is because the toner may get stuck in a cartridge. In such situation, remove the cartridge and gently shake it side to side. This may let you print many extra copies from the printer.
Ink Jet Printers:
Ink jet printers are inexpensive and provide good quality copies if the number of pages to be printed are not many. These are not as durable as laser printers. One of the disadvantage of inkjet printers is the cost of each ink cartridge. It is best to use glossy photo paper while using inkjet for high-quality photos. It is designed to enhance the ink droplets and at the same time minimizes the possibility of smears or smudges.
This type of paper also assists in the ink-drying process. However, this specialized paper are costlier than ordinary copy paper. There is a a little risk of smearing and smudging of ink prior to completely drying on the paper in liquid ink technology. Sometimes the ink may also clog where the ink droplets are shot onto the paper resulting in image-quality problems. In such case, the ink cartridge may need to be self-cleaned or replaced.
The other types of printer that are in use are:
- 3D printer
- AIO (all-in-one) printer
- Dot matrix printer
- LED printer
- MFP (multifunction printer)
- Thermal printer
Uses of a Printer:
There are different types of uses for each type of printer. These are as below:
- Hundreds of text documents or pages can be quickly printed.
- Hard copies of legal documents or professional can be printed.
- Copy of a document for school can be printed.
- Pictures on photo printer can be printed.
- Receipts for purchases made online can be printed.
- It can be used to print tools or parts needed to build something.
- It can be used to print replacement parts for something which is broken.
- It can be used to print toys for children.
A printer can be connect to and communicate with a computer by different ways. These computer are referred to as interfaces. USB cable (wired) or Wi-Fi (wireless) are the most common connection types. Cat 5, MPP-1150, Parallel port, Firewire, SCSI, Serial port, USB and Wi-Fi are some of the cables and interfaces used to connect a computer to a printer.