Epson TM-T88V Technical Reference Manual page 84

3
Press the Feed button while the printer is in the self-test wait mode.
If you select the SELF-TEST, the printer prints a rolling pattern using only the built-in
character set.
If you select the mode selection, follow the instructions printed by the printer.
After printing the following message, the printer is initialized and returned to the normal mode.
84
"*** completed***"