Epson TM-T88VI-DT2 User Manual page 22

English
Controlling the Speaker Volume
You can control the speaker volume through the product's operating system.
Forced Termination
!
CAUTION:
When forced termination is executed, all unsaved data is lost and recovery of the operating system
may be required.
If you cannot turn the product off using applications or the operating system, you can execute
forced termination as a last resort by pressing the power button for approximately 4 seconds.
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