WiFi-enable USB printers with a Raspberry Pi and share it over your network
Setting up an AirPrint Server on your Raspberry Pi - Pi My Life Up
Hands-on: adding AirPrint to your home network with xPrintServer | Ars Technica
Amazon.com: StarTech.com 1 Port USB Wireless-N 150Mbps AirPrint Server - 802.11b/g/n : Electronics
USB Wireless-N 150Mbps AirPrint Server - Network Printer Servers
Hawking Wireless Multifunction With AirPrint Support USB Printer Server 3 Port for sale online | eBay
Shop | StarTech.com 10/100Mbps Ethernet to USB 2.0 Network Print Server - Windows 10 - LPR - LAN USB Print Server Adapter (PM1115U2) - print server - USB 2.0 - 10/100 Ethernet
Raspberry Pi Print Server: Setup a Network Printer - Pi My Life Up