Here are the most common Epson control codes:

Init 27 64

Normal 27 33 1 OR 27 33 0

Enlarged 27 33 63 OR 27 33 62

Black Ribbon 27 114 0 OR 29 66 0 

Red Ribbon 27 114 1 OR 29 66 1

Validation 27 99 48 5 OR 27 113

Cut 27 105 (107) OR 29 86 0(1)      full(partial)

Line feed is either 10 or 13

Cash Drawer 27 112 0 8 32 or 27 112 0 16 64