The cause can be almost anything - from trivial problems with the power supply, to serious defects on the motherboard.That is why it is worth taking the equipment for service, because the fault can be trivial and inexpensive to repair. Even if we do not have a guarantee anymore, but our computer still performs well, it's worth servicing,
Laser printing is an electrostatic digital printing process.It produces high-quality text and graphics (and moderate-quality photographs) by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a "drum" to define a differentially charged image.1 The drum then selectively collects electrically charged powdered ink (toner), and transfers the image to paper, which is then heated in order to permanently fuse the text, imagery, or both.
As with digital photocopiers, laser printers employ a xerographic printing process.However, laser printing differs from analog photocopiers in that the image is produced by the direct scanning of the medium across the printer's photoreceptor.
- although such prints should be called printouts. The introduction of computer techniques and digital printing to printers has meant that printing is also often understood as printing done on an industrial scale by means of adapted printing machines. .