Replacing printers
Even the highest quality printing device can fail, especially when it is used every day for many hours. Therefore, a professional printer service is a type of service that enjoys great interest, and people who are well-versed in the repair of printing devices can count on having a large number of satisfied customers. The same applies to professionals involved in the replacement of parts in printers or the installation of suitable replacements. They can provide their services in their showrooms or commute to clients. This means that the services they provide are at the highest level and are often ordered by owners of various types of printing devices.
Wikipedia definition of printer
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)
Connecting printers with a scanner
Sales of printers with a scanner is now a very good way to run a profitable business. This is because these types of printers have many customers who want to own them in their homes or companies. Therefore, both small printers with an additional scanner and large scanning devices go on sale. They work perfectly in offices, schools, in the back of the shop or at universities. Therefore, it is not uncommon to sell printers with a scanner, and then you can order almost any number of such devices and they will be delivered almost instantly to the delivery address.