As long as it has the barcode you should be able to enter. Last year I had the ticket via email which has the barcode (QR Code) so they just scanned that and I got in.I decided to post this question on this thread, as I thought it would be too off-topic for the Questions thread, due to said thread being strictly anime related. Anyone who attended MCM Comic Con previously (specificially MCM London), if anyone chose "print at home" tickets, are the tickets required to be printed in colour, or are black and white printed tickets acceptable?