Yeah there's no automatic cleanings ever if it's sleeping or powered off or if you run out of the cleaning cartridge. Only when you use it. Just never take out the cartridge because then the printheads are not capped.If it is not completely out you still have about 100m from the time it goes on reserve.
My question would be if it runs out completely and i cant get one for say a week or so does this mean that there is zero cleaning in the interim?