Just dropping it here because sharing is caring.
Since my holidays the 3 and 3L have been printing 24/7 and very successful. However both slowed down after about 3.5 weeks of continuous printing. Prints took several hours longer. Up to 10h longer. Print came out fine though. Turns out its know memory issue common to cellphones, PC and so on. So the printers have to be rebooted once in a while