🖨️
My new printer stopped working under #LinuxMint the other day. Re-adding it resulted in a general error message.
Finally found the solution:
In the printer's "location" field, I had specified "Mein Büro" ("My office" in German). And Cups does not like umlauts in that field. 😶
After removing the "ü", the printer worked.
Maybe this information will be helpful to someone, at some point. 🙂