A:AnswerWhen you open the bottles and flip them upside down, there is a nozzle on the end that prevents spillage. You will flip them downward into the ink containers and it will sound like a click. It’ll then pull the ink on its own and somewhat stop itself once it’s full. I hope this make sense and helps!
A:AnswerNot really but if you want to have a supply I guess you could. I haven't had any problem with running out, but then again I don't print that much.
A:Answerwould not recommend mixing inks. With my 2650 occasionally I would have to run the nozzle function as well as the head cleaner to get rid of the unwanted column lines. That would clear it up, and I wiped everything down with alcohol.
A:AnswerI just bought this printer recently. I’ve had no complaints but far as I know you can either air print directly from your phone or you can connect it directly to the Wi-Fi of the printer and print that way.