Panel Lights - Epson TM-T88 Operator's Manual

Panel lights

POWER
The POWER light is on whenever the printer is on.
ERROR
This indicates an error. See Chapter 3 for information on what to do
when this light comes on.
PAPER OUT
This light indicates the near end of the paper roll. Install a new
paper roll and the printer will continue printing.
When the light blinks, it indicates the self-test printing standby
state or macro execution standby state when the macro execution
command is used.
2-2 Using the Printer