HP Point of Sale (POS) Peripherals Configuration Guide

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6.5.4 PRINTER CLASS Mode
When the printer is in PRINTER CLASS mode, the Microsoft Windows native drivers are
loaded by operating system for device manager. PRINTER CLASS mode must be
used when the POS application does not use OPOS driver to communicate the receipt
printer.
The following is showing what appears in Windows Device Manager after the driver has
been loaded for the printer in PRINTER CLASS mode: