As noted, one of the most important and useful features of many modern printers is their ability to connect to the network via Wi-Fi, by eliminating the need to connect a cable between your computers/mobile devices and your printer.

But if you have a printer that only connects via a USB cable and you really don’t want to replace it just to get Wi-Fi connectivity on your HP printer, what will you do then? No worries, here are three methods to convert wired printer to wireless printer. 

• Method 1: PLUG IT INTO A WIRELESS PRINT SERVER: Check whether your printer has a USB port on the back of it or not. If yes then you can plug in a wireless print server, to connect your printer by using the USB to USB cable which came with your printer.

• Method 2: SHARE PRINTER WITH OTHER PCs IN YOUR HOME: A cost-effective way to make the printer wireless is by connecting it to a host computer. For that, you need to go into the Control Panel in Windows and enable the printer to be shared on the other network. But for that you need to power down your host computer otherwise other computers on the network can't use the printer.

• Method 3: BLUETOOTH ADAPTER: Almost every manufacturer sells an optional Bluetooth adapter; the benefit of connecting via Bluetooth is that if you have don’t even have a phone with Wi-Fi, still you can send pictures and files to the printer via Bluetooth.

Read this also: http://printeralign.mystrikingly.com/blog/how-to-convert-a-usb-printer-to-wireless