Due of their comparable page-creation processes, light emitting diode printers are frequently grouped alongside laser printers. They provide output that is clear and appealing and employ a drum, toner, and fuser, much like a laser printer. They employ an array of LEDs as opposed to a laser and mirrors in a laser printer. Manufacturers of small business printers employing LED technology include Okidata, Panasonic, and Xerox, among others.
LED
LED printers begin by drawing a line-by-line representation of the page they intend to print. A row of 4800 tiny LEDs, or an 8-inch print area, make up a 600 dot-per-inch LED printer that prints on 8.5-inch wide letter-sized paper. Through the use of a focusing lens, the LEDs are pointed towards a drum, which rotates while rapidly blinking consecutive pictures of each line that makes up the page. They create all 6300 lines on an 11-inch sheet of letter-sized paper with a 10.5-inch printing area in only a few seconds.
Drum
The drum in LED printers is similar to the drum in laser printers. It is coated with a photosensitive chemical and receives a charge of static electricity. The areas of the drum that get struck with light get negatively charged. The intermittently charged drum then passes through positively charged toner which sticks to the negatively charged areas of the drum. The drum continues rotating until it touches the more strongly negatively charged paper, causing the toner to jump off of it and onto the paper.
Fuser
The only thing keeping the toner on the paper at this stage is a static electrical charge. The toner travels via a component known as a fuser to stay on the paper. The fuser is made up of heated rollers that melt the toner onto the paper and expel the printed page into the output tray.
LED Benefits
The advantages of LED printing result from the absence of moving parts in LED printheads. Because they lack a revolving mirror assembly, they can be smaller and quieter than the printheads in laser printers. They may also be more dependable than the complex laser printer assembly because they don’t have moving parts.
