A common problem with wireless printers is incorrect set up. It is important to follow the set up instructions properly to avoid conflicts and inability to print. Generally wireless printers must be set up through your broadband router. There are a few printers which are Direct Print, straight from PC or laptop to the printer, but most go via a router.
When using wireless printing any USB cable to that printer must be unplugged in order to avoid a conflict which results in no printing at all. In general terms printing via a cable is much faster for particularly large or complex documents. For “light” printing, wireless is fine.
Wireless printing can also present problems where there are very thick walls in buildings. In such cases it is important to site your printer carefully for optimum signal to reach the printer. If you experience difficulty it can be worth moving the printer to get better results.