Epson TM-T88VI-iHUB Reference Manual page 64

USB IEEE1284 device ID
 Do not output IEEE1284 Device ID
 Output IEEE1284 Device ID (default setting)
Settings for USB port with charging function
 Disable the charging function, Enable USB communication (default)
 Enable the charging function, Disable USB communication
Print data parsing setting
 Disabled (default setting)
 Enabled
The setting item may not be available depending on the region.
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