They are ordered wholesale and also consumed in bulk.For each order, the production costs are optimized, and the appropriate technique and type of printing is selected. Graphic designers, DTP operators and printers deal with this.
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.
This enables laser printing to copy images more quickly than most photocopiers.Źródło: https://en.wikipedia.org/wiki/Laser_printing
Also stationary sales of printing accessories may turn out to be very attractive, and shopping in printers' shops becomes an opportunity to find such goods that will allow you to improve the quality of your printouts.
It should also be remembered that the places of stationary sales of printing accessories are really very much and they are carried out, for example, in shopping centers. .