Wikipedia about laser printing
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
Large company printers
Multifunctional company printers do not have to be large in size so that you can use them to do a lot of really professional looking printouts. Therefore, the largest companies have both small printers and large printing devices used when printing the most important reports and large banners or advertisements. Such printers should always be very durable and truly specialized, because otherwise you will not be able to execute company orders using them. However, having the highest quality printers means that all office work is carried out very smoothly.
Fast service for inkjet print shops
People who come to the store with printers hope that they will be quickly and efficiently and at the same time expertly served. It must be admitted that a high-efficiency store's ability to serve customers is not such a difficult task, because it is enough to hire the right number of employees and equip them with the highest quality equipment so that they can sell at a satisfactory pace. A bit more difficult task may be to create an advisory base for clients who are not sure what kind of goods they want to buy. However, the experience possessed by such salesmen allows for specialist support for print shops. Thanks to them, all clients will receive the information they need.