A:Answerits windows or Mac either way delete Epson program and reinstall if that doesn't work look for printer in computer and add it . it doesn't work call support Epson .
A:AnswerYes or No it's better to use an original Epson ink but for emergency reasons yes as long as it's compatible to Epson-Eco-Tank ET-2800 thank you.
A:AnswerHello NicG. Your results can vary based on the paper type used for your certificates. We recommend using paper types that are similar to compatible Epson paper. Please see the User's Guide on our official Epson Support page for a list of Epson paper that works with the machine. Regards, Kevin - The Epson Team.