They can also use online guides, which contain useful information for them and trivia from the world of printing services.
In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper.
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)
Very often, the prices of their purchase have been reduced because the owners of particular stores wanted to sell a new type of accessories or increase the level of sales of goods brought by them.
Of course, they try to lower the prices of those products that have a chance for the highest sales, which is why they introduce rebates on inks and toners as well as photocopying and cleaning materials. .