In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper.
The first electronic printer was the EP-101, invented by Japanese company Epson and released in 1968.
The first commercial printers generally used mechanisms from electric typewriters and Teletype machines.The demand for higher speed led to the development of new systems specifically for computer use.
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
First, important things were printed like books.But these are REALLY important, not some literature for the mob.
Well, because the mob was quite illiterate at the time.
Because you can print everything on your T-shirt and have it originally.
Well, who would prohibit the rich? .