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
Polygraphy The printing itself is a department wide as the sea and various fishes in this sea are swimming.
From simple leaflets to large banners or window stickers.
With such a broad concept, it is sometimes difficult to say what the printing company specializes in.
Some factories are choosing low-volume small-format prints, others for stickers, and others only for large-format printing.
What sometimes makes it difficult to choose one plant for our orders, but what the market is like, and the price of services and their quality are also important.
Almost every company needs certain printed articles, or if you prefer printing. Leaflets, banners or posters are the main means of advertising for many companies, especially for local and small ones.
Well designed leaflets or business cards can attract many customers, and badly made to scare away and discourage our brand, company or product. Therefore, it is necessary to pay special attention to the quality of these materials, also in terms of technology of doing these things in the printing house.