I am trying to add a CUPS printer via settings/printers. After clicking "Add..." the printer isn't listed until hostname is given. Then selecting the printer results in this error: "Failed to add new printer.". I don't know how to investigate this.
Printer is configured on a raspberry pi CUPS service and test works fine on the device. However, I can't add the printer to the system. Any ideas?
Edit: Printer is a Samsung ML-1860. I have the driver and PPD files to print via USB both on the server and Ubuntu. Problem is to make the network part work at the moment. I am not sure, what the network print protocol is implemented here. I have it simply on CUPS on the server side and "shared". I can access it via URL/browser. e.g. http(s)://:631/printers/Samsung_ML-1860
Both are in the same local home network/subnet.