Prasad has taken print out of his word document of 10 pages. It took long time for him to get the print out, and also a impression is seen at the back. Can you identify the Printer used by him?
1.Laser
2. Inkjet
3. Dot Matrix
choose 1..
Answers
Answer: Inkjet
Explanation:
What’s the difference between an inkjet printer and a laser printer?
An inkjet printer uses ink to print documents, while a laser printer uses a laser to print documents. Pretty simple, right?
The different printing processes affect each printer’s speed, functions, and image quality. Let’s go into a bit more detail.
How does an inkjet printer work?
An inkjet printer uses ink cartridges.
Here’s how it gets the ink onto paper:
1. The printer processes an image or document from a device.
2. Small nozzles (jets) are positioned throughout the printer to spray ink droplets onto a sheet of paper as it passes by. Hundreds of nozzles release thousands of ink droplets
3. To release an ink droplet, the nozzle is heated by electricity. The heat causes the ink to expand in a bubble, and it expands through the nozzle until it squirts onto the paper.
4. When the ink bubble collapses, a vacuum is created that draws more ink into the nozzle from the ink cartridge, ready to release the next droplet.
5. It takes many droplets to form a single character.
The nozzles are attached to a printhead, which can move left and right across the paper to create new characters.
What uses are best for an inkjet printer?
You should get an inkjet printer if you need to print high-quality color images.
Inkjet printers have better tonal variety and they’re better at blending colors. Inkjets can also print on a variety of paper types, including glossy paper. Laser printers can’t print on any paper type that’s sensitive to heat.
Inkjet printers don’t print as quickly as laser printers do, and their paper trays can’t hold as much paper.
Inkjet cartridges are also more expensive, a
For those reasons, inkjet printers are a better option if you print less frequently, or if you only print a few pages at a time.
How does a laser printer work?
Although it’s called a laser printer, static electricity is the main phenomenon that occurs to get those images and text on the page. Remember, when it comes to static electricity, opposites attract; only positive charges and negative charges stick to each other.
Negative can’t attach to negative and positive can’t attach to positive (try playing with the ends of two magnets if you don’t believe it).
A laser printer cleverly manipulates static electricity to attach toner to a sheet of paper. Laser toner is a powdered ink that’s more grain-like than regular ink.
Here’s how a laser printer works:
1. The printer processes an image or document from a device. Then it uses high-voltage circuits to give electrical charges to some of its components.
2. The “photoreceptor drum” is a revolving drum that’s given a positive electric charge.
3. A laser beams against a mirror. The mirror reflects the laser onto the photoreceptor drum.
4. While the laser is beaming, the mirror moves in such a way that it “draws” out the image on the photoreceptor drum.
5. Wherever the laser hits the photoreceptor drum, the positive charge is replaced by a negative charge. The mirror has basically sketched a negatively-charged shape onto a positively charged canvas.
6. Toner is released onto the drum. The toner is positively charged, and it sticks only to the negatively charged parts of the drum that have been outlined by the laser. The toner essentially “colors within the lines.”
7. A sheet of paper is rolled through the printer. The paper is given a powerful negative charge.
8. As the paper passes the drum, the paper’s negative charge pulls grains of toner from the drum onto the sheet of paper. The toner grains sit on the surface of the paper.
9. The paper’s electric charge is removed. Then it passes through hot rollers that use heat and pressure to fuse the toner grains into the paper.
What uses are best for a laser printer?
You should get a laser printer if you print high volumes of black and white documents.
Laser printers can print much faster than inkjet printers can. Most are equipped with high-capacity paper trays, so they can print more pages at a given time. They’re also built to handle the printing of thousands of pages per month without succumbing to wear-and-tear.
Laser printers don’t print color photos as well as inkjet printers do. They can print basic photos for everyday use, but they’re not built to print gallery-quality photos. For that reason, they’re not optimal for photographers or designers.
Laser printers are larger and heavier than inkjet printers, which makes them difficult to fit in a home office (although some models come in a more compact size). But they’re very well suited for office use due to their high printing capacity.