Such stickers on the body or even paint the entire company car in advertising.
However, as everything can be overdone here too, so it is not worth refocusing the subject. Sometimes it's enough to use a simple sticker with the logo and phone number, which can be easily ordered from your local printing company.Most of them also offer low advertising stickers, which can be useful in any company.
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. This enables laser printing to copy images more quickly than most photocopiers.Źródło: https://en.wikipedia.org/wiki/Laser_printing
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.