A:AnswerI would not use anything but the original Epson manufactured 664. I think that is how my last printer died which was by using cheap generic ink cartidges.
A:Answeryes, mine is connected to my Optiplex with a standard printer cable, USB male on the computer end and standard printer male plug on the printer end.
A:AnswerSmudge, i recommend to use a plastic bag when you are adding the ink, but is quite easy and safe to do. I didn't use gloves but a good wash removes the ink from my hands
A:AnswerYes, avery labels work great. You need to have the label program on your computer, but the printer does a great job. The printer also addresses envelopes very well too, again you need the program on your computer for this.