Laser printers

Definition

Laser printers are devices that use a laser beam to produce an image on a drum which is then transferred to paper using electrostatic charges. They are known for high-quality text and graphics printing.

5 Must Know Facts For Your Next Test

1. Laser printers rely on the principles of electrostatics to transfer images onto paper.
2. The process involves charging a photoconductive drum, exposing it to laser light, and then transferring toner particles to the charged areas.
3. A laser printer's drum holds an electric charge that changes when exposed to light from the laser beam.
4. Toner particles in laser printers are positively or negatively charged so they adhere to the oppositely charged areas on the drum.
5. The final step in the printing process is fusing, where heat and pressure are applied to permanently bond the toner to the paper.

Review Questions

Related terms

Electrostatics:

The study of stationary electric charges and their effects.

Photoconductor:

A material that conducts electricity better when exposed to light.

Toner:

Powder used in laser printers and copiers to form text and images on paper.