Types of Printers - Complete Notes
Definition of Printers-
A printer is an electro-mechanical device which accepts text, graphic output from a personal computer or laptop and transfers that information to papers. Printers can vary in speed, sophistication, cost and price.
Types of Printers-
Generally Printers are of two types- Impact Printers and Non Impact Printers.Though Impact Printers make noise while printing, it is useful to print multi part forms like invoice.
Impact Printers-A printer is an electro-mechanical device which accepts text, graphic output from a personal computer or laptop and transfers that information to papers. Printers can vary in speed, sophistication, cost and price.
Types of Printers-
Generally Printers are of two types- Impact Printers and Non Impact Printers.Though Impact Printers make noise while printing, it is useful to print multi part forms like invoice.
This kind of Printers work by putting a needle or head against the ink ribbon to create a mark on the paper. The Dot-matrix printers, Daisy-Wheel printers and Line printers are the example of Impact Printers.
Advantages-
- It uses pressure to create an image, they work in case of multi-part forms which have leaves either of carbon paper or use carbon-imprinted paper.
- It prints one line at a time instead of one page. It's paper feed mechanisms are designed to use continuous forms.
- It produces high quality output.
Disadvantages-
- It can only print in a single character and font size.
- These are extremely slow. It can print only 10 characters per second.
Dot Matrix Printer-
This kind of Printer uses a print head which moves back and forth or in up and down motion on the page. The Dot Matrix Printer prints by impact by striking an ink-soaked ribbon against the paper like the print mechanism of a typewriter.It is of 2 types i.e. Serial Dot Matrix Printer and Line Dot Matrix Printer.
Daisy-Wheel Printers-
This kind of Printers use interchangeable pre-formed type elements with typically 96 symbols. It generates high-quality output. Daisy wheel printing is used in word processors, electronic typewriters and computers. It is so named as it resembles to the Daisy flower.
Line Printers-
This kind of Printers print one whole line of a text at a time.It is faster as each impact prints an entire line. It is of five types.E.g. Drum printers, Chain Printers, Bar Printers, Comb Printers and Wheel Printers.
Non Impact Printers-
The print-heads of Non- Impact Printers does not strike on the page. This kind of Printer prints without putting a ribbon on the paper. Laser, Inkjet, Thermal Printers are examples of Non-Impact Printers. It is quieter than the impact printers as they don't strike the page physically.
Advantages-
This kind of Printer uses a print head which moves back and forth or in up and down motion on the page. The Dot Matrix Printer prints by impact by striking an ink-soaked ribbon against the paper like the print mechanism of a typewriter.It is of 2 types i.e. Serial Dot Matrix Printer and Line Dot Matrix Printer.
Daisy-Wheel Printers-
This kind of Printers use interchangeable pre-formed type elements with typically 96 symbols. It generates high-quality output. Daisy wheel printing is used in word processors, electronic typewriters and computers. It is so named as it resembles to the Daisy flower.
Line Printers-
This kind of Printers print one whole line of a text at a time.It is faster as each impact prints an entire line. It is of five types.E.g. Drum printers, Chain Printers, Bar Printers, Comb Printers and Wheel Printers.
Non Impact Printers-
The print-heads of Non- Impact Printers does not strike on the page. This kind of Printer prints without putting a ribbon on the paper. Laser, Inkjet, Thermal Printers are examples of Non-Impact Printers. It is quieter than the impact printers as they don't strike the page physically.
Advantages-
- This kind of Printer has good resolutions as they use drops of ink measured in toner particles which are measured in micrometers.
- It provides much higher resolutions and can work silently.
Disadvantages-
- This kind of printer is costly.
Laser Printer-
It uses an electrostatic digital printing process. It produces text and graphics of high quality by repeatedly passing laser beam back and forth on a negatively charged cylinder Drum to produce a deferentially charged image.
Inkjet Printer-
It produces a digital image by putting droplets of ink on plastic, paper or other substrates.It prints using piezoelectric crystals to deposit materials on substrates directly.
Thermal Printers-
It produces a printed image by heating selectively the heating coated paper. When the paper passes over the thermal print head, coating becomes black in heated areas and produces an image.
It uses an electrostatic digital printing process. It produces text and graphics of high quality by repeatedly passing laser beam back and forth on a negatively charged cylinder Drum to produce a deferentially charged image.
Inkjet Printer-
It produces a digital image by putting droplets of ink on plastic, paper or other substrates.It prints using piezoelectric crystals to deposit materials on substrates directly.
Thermal Printers-
It produces a printed image by heating selectively the heating coated paper. When the paper passes over the thermal print head, coating becomes black in heated areas and produces an image.
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