๐จ๏ธ
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 Bรผro" ("My office" in German). And Cups does not like umlauts in that field. ๐ถ
After removing the "รผ", the printer worked.
Maybe this information will be helpful to someone, at some point. ๐