First, important things were printed like books.
Well, because the mob was quite illiterate at the time.
Then also such fiction was printed, meaning for the reading of the book.
Because you need to build brand awareness at the customer, i.e.printing and marketing is an inseparable couple. Because you can print everything on your T-shirt and have it originally.
Well, who would prohibit the rich?
Multifunction devices offer increasingly larger scanning resolutions, less margin, larger formats, etc. But still, such home printers are far behind the professional equipment used in professional printers.
Not to mention the much larger range of techniques used, which have nothing to do with those we know from home printers.
The quality of such printouts is higher, which entails the obvious higher costs of printing itself.
In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper.
The first computer printer designed was a mechanically driven apparatus by Charles Babbage for his difference engine in the 19th century; however, his mechanical printer design was not built until 2000.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.In the 1980s were daisy wheel systems similar to typewriters, line printers that produced similar output but at much higher speed, and dot matrix systems that could mix text and graphics but produced relatively low-quality output.The plotter was used for those requiring high quality line art like blueprints.Źródło: https://en.wikipedia.org/wiki/Printer_(computing).