Epson Mobilink TM-P20II Technical Reference Manual page 77

Chapter 4 Advanced Usage
By changing the setting to [Level 2 (Short)], you can shorten the time until printing begins. However, since the
frequency of communication increases, the power consumption of the printer and host will increase. Also,
depending on the host, this setting may not be enabled and the host-specified communication interval may be
used.
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