If you are using Aloha, contact your reseller and they will tell you the correct dip switches to use. I currently am using an Epson TM-T88III with my Aloha system. I recently contacted my reseller and this is what they told me:
DSW1 should have following turned on: 3,5,6 all others shut off.
DSW2 all should be shut off unless it is auto cut if that is the case the 2 would be the only one turned on.
My printer is working perfectly!