Final answer:
Virtual printers are used to convert documents into different formats like PDFs and to route print jobs to different locations, thus reducing waste and saving on physical resources.
Step-by-step explanation:
Virtual printers are used in situations where the goal isn't to produce physical copies but to accomplish other tasks. One common use-case is when you want to convert documents to a different format, such as creating a PDF file from a Word document. Instead of printing on paper, the virtual printer saves the document as a PDF. Another situation is for jobs routing where, for example, a document sent to print in one location can be rerouted to be printed at another, more convenient or cost-effective location without the need for the user to physically re-send the job. This process is managed entirely within the network without physical prints until the final destination.
Virtual printers also allow for environmentally friendly solutions by reducing waste when a physical copy is unnecessary, thus saving on paper and ink. It complements traditional ink jet printers and laser printers by providing these additional functionalities without the need for physical consumables.