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A+ Study Guide: Printers

Ink Dispersion (Cont...)

LASER PRINTER

The main principle behind the working of a laser printer is Static Electricity. It works on the principle that atoms with opposite charges attract each other.

The Laser Printer makes use of this energy as temporary glue. The most important part of the laser printer without which it cannot function is something known as the photoreceptor. The photoreceptor basically consists of a cylinder or a drum that revolves. Using highly photoconductive material that is dispersed by light photons creates the drum or the cylinder.

A laser printer consists of:

  • Toner

  • Corona wire

  • Quartz lamp

  • Laser unit

  • Fuser

  • Developer roller

  • Photoreceptor drum assembly

Each of these parts has a very important role to play in the printing process.

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