Connecting a USB Hub to the USB Host Port
You can connect a USB hub to the printer so that you can connect several USB
devices to the printer at the same time.
Note: If the USB hub is not powered, you can only connect one USB mass storage device
and one HID (keyboard or scanner) peripheral to the USB hub at a time. If the USB
hub is powered, you can connect multiple USB mass storage devices and multiple
HID peripherals at once.
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PX4i and PX6i High Performance Printer User Guide