Someone mentioned their Epson 3880 occasionally would act up while being left on. Pumping up carts and maybe some nozzle activity into the maintenance cart. I've left mine on for a few days but haven't heard anything like that, but I'm not around it either.
Can't find it now or anything in the book, but was wondering if leaving the thing on 24/7 does some sort of random auto-cleaning to keep the nozzles from plugging up?
Tia.
SG