What is a laser printer? Working principle and function of laser printer

Laser printers are a type of printer with many utilities that are widely used in schools, companies, and printing facilities. Let’s find out with Tnhelearning.edu.vn what a laser printer is and how it works!

What is a laser printer?

A laser printer is a type of digital printer that uses a xerography process to print ink onto paper with a laser. Laser printer is a type of printer that has many utilities such as: fast printing speed, clear print quality, …

There are many types of laser printers on the market today such as black and white laser printers, color laser printers. This is also the reason that laser printers are widely used in professional office work environments.

Working principle of laser printer

Here’s how a laser printer works:

• Step 1: Inside of the printer is the data block. This printing block is responsible for receiving data from the computer, then encodes and uses Laser Diodes to generate signals for the magnetic drum to operate. The main signal is the intensity and number of lasers from the Laser Unit .
• Step 2: Through the polygonal mirrors, the laser beam will be distributed onto the magnetic drum ( Photoreceptor Drum Assembly ) to make the magnetic drum rotate, then get ink from the toner cartridge ( Toner Hopper ) (the ink cartridges if the printer is a printer). color lasers).
• Step 3: At the same time, from the time of planting from rotation, the transport department will also receive printing paper from the paper tray ( Paper Tray ). After that, the paper will be transferred to and scanned the magnetic drum, ink from the magnetic drum will be adhered to the surface of the printed paper.
• Step 4: For ink to adhere deeply to the paper, a part used is the fuser ( Fuser ) which will be responsible for heating the ink, helping the ink penetrate deeply and the paper thereby improving the durability of the text after printing. .
• Step 5: Take out the paper and finish printing. In case you choose to print on both sides of the paper , there will be a duplexer to repeat the above steps on the other side.

Function of laser printer

Fast print speed

Laser printers have fast printing speeds. By flexible configuration, the printer can print from 12 – 20 pages in 1 minute. Some specialized models can reach 40 pages per minute . With fast printing speed, laser printers help save printing time in an extremely effective way.

Resolution

Laser printers have a high pixel density, which helps the image after printing to be sharp. At the same time, laser printers have many types of resolutions, but usually laser printers will have 3 resolution levels of 1200×1200 dpi , 2400×600 dpi , 600×600 dpi to help users have many options.

Print quality

Laser printers are one of the best printers on the market today. With modern laser printing technology, the text printed by the laser printer has good quality (high sharpness, durable ink adhesion over time, uniform print quality).

Extra feature

There are many lines of laser printers on the market with attached utility functions such as: automatic 2-sided printing, wifi printing,… This helps consumers easily choose laser printers with different options. desired secondary function.

Above, Tnhelearning.edu.vn has sent you basic information about laser printers. Hopefully, through this article, you will be able to choose the printer product that best suits your needs!