Cosa (chi) è LED page printer - definizione
![Chips on board]] (COB) LED module from an industrial light luminaire, thermally bonded to the heat sink](https://commons.wikimedia.org/wiki/Special:FilePath/Chip-On-Board COB LED Module.JPG?width=200 "Chips on board]] (COB) LED module from an industrial light luminaire, thermally bonded to the heat sink")
![[[BAPS Shri Swaminarayan Mandir Atlanta]] Illumination with color mixing LED fixtures](https://commons.wikimedia.org/wiki/Special:FilePath/DSC09917 BAPS Temple - E view by Volkan Yuksel.jpg?width=200 "[[BAPS Shri Swaminarayan Mandir Atlanta]] Illumination with color mixing LED fixtures")
![Disassembled LED-light bulb with [[switched-mode power supply]] circuit board and Edison screw](https://commons.wikimedia.org/wiki/Special:FilePath/EcoEnergy EE-02-010.JPG?width=200 "Disassembled LED-light bulb with [[switched-mode power supply]] circuit board and Edison screw")
![Illustration of [[Haitz's law]], showing improvement in light output per LED over time, with a logarithmic scale on the vertical axis](https://commons.wikimedia.org/wiki/Special:FilePath/Haitz-law.svg?width=200 "Illustration of [[Haitz's law]], showing improvement in light output per LED over time, with a logarithmic scale on the vertical axis")
![LED driver]] circuitry exposed.](https://commons.wikimedia.org/wiki/Special:FilePath/LED-E27-Light-Bulb-1134.jpg?width=200 "LED driver]] circuitry exposed.")
.jpg?width=200 "LED lamp used in photography")
![E27]] base. The filaments are visible as the eight yellow vertical lines.](https://commons.wikimedia.org/wiki/Special:FilePath/LEDfilamentLightBulbE27.jpg?width=200 "E27]] base. The filaments are visible as the eight yellow vertical lines.")
![LEDs as Christmas illumination in [[Viborg, Denmark]]](https://commons.wikimedia.org/wiki/Special:FilePath/Sct Mathias xmas illumination 2010-12-14.jpg?width=200 "LEDs as Christmas illumination in [[Viborg, Denmark]]")
Wikipedia
An LED printer is a type of computer printer similar to a laser printer. Such a printer uses a light-emitting diode (LED) array as a light source in the printhead instead of the laser used in laser printers and, more generally, in the xerography process. The LED bar pulse-flashes across the entire page width and produces the image on the print drum or belt as it moves past.
LEDs are more efficient and reliable than conventional laser printers, since they have fewer moving parts, allowing for less mechanical wear. Depending on design, LED printers can have faster rates of print than some laser-based designs, and are generally cheaper to manufacture. In contrast to LED printers, laser printers require combinations of rotating mirrors and lenses that must remain in alignment throughout their use. The LED print head has no moving parts, and the individual assemblies tend to be more compact.
