Otherwise, they will not make a good impression on customers coming to the photocopier and they will just quickly fade.
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.
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.
This enables laser printing to copy images more quickly than most photocopiers.Źródło: https://en.wikipedia.org/wiki/Laser_printing
It should be admitted that people who use toners installed in large printers for the first time may have problems with placing them in the printer in such a way that a large number of good quality prints can be made.
That is why there is no shortage of such professionals who work on printer toners.
Thanks to this, they can fully develop their business. .