You could try setting up a cheap Raspberry Pi with the print service (I forget what it's called). Even a Pi Zero W would work, just need a USB cable to the printer.

I've found USB print servers to be rather pricey, since they aren't used much any more. At least spending money on a Pi would give you something you could do a lot more with.

A lot of wifi routers have a USB port on them, connect the printer straight to the router, enjoy your wireless printer.

Look for a USB print server.

It's hard to change an old brother.

Is connecting it to the router via USB an option?

Rpi 5 is overkill. You can probably do this with a Rpi zero W

I used the cheapest sbc I could find at the time which was an orange pi zero to run a CUPS server

U can probs get ur hands on a raspberry pi pretry cheap and put cups on it. Seems very doable chatgpt will strait up give u a step by step.

Many modern routers have this exact capability - to take a USB-only printer and serve it up over the network. Even some ISP modem/router combo units are set up to do this. Check to see if your router has any USB ports on the back.

I'd pick the Raspberry Pi if you can do the install. Furthermore maybe your internet router can do it. I think it's possible with some Fritzbox models or ones that run OpenWRT. Or you pay the price for one of those dedicated adapters. I don't know if the drivers for those are more or less haste than using a Raspberry Pi.

As others have already mentioned the better method of connecting to a router, I'll also mention if it's located by a Windows machine you can share the printer from the printer properties window. One other option is buying a wireless adapter for the printer itself. I have fixed old printers which used the wireless adapters and I assume they worked for a long time but were a massive pain to troubleshoot as the user manuals/drivers/documentation could no longer be found online.