TL-WR703N: Attaching USB Serial Adapters – FTDI/CP2102/PL2303/CH340G – Lincomatic's DIY Blog
Re-purpose Your Old Home Router – Fun Tech Projects
Persistent usb device name - Installing and Using OpenWrt - OpenWrt Forum
GitHub - TheMMcOfficial/cups-for-openwrt: If you want to install cups on your openwrt router to share a usb printer or to enable airprint on your old usb/network printer follow these steps.
Howto: Getting CUPs working on OpenWRT guide - Mattie47.com
2-In-1 Wireless USB Print Server - USB Printer Network Adapter - Walmart.com
1200m Wireless OpenWrt Router Daul Wan USB Multiple Print FTP Samba Disk Shares for sale online | eBay
OpenWrt Wiki] p910nd Print Server
LOYALTY-SECU Network Bluetooth Printer Adapter USB Print Server (White)
TL-WR703N Example Project 3 : Wireless 3D printing (or 2D printing or just simply wireless USB) – Madox.NET
TPlink C7 v2 USB Printer - Installing and Using OpenWrt - OpenWrt Forum
Print Server Pulpstone OpenWrt LEDE (Support Print via Android) - YouTube