Before plugging anything in, it is critical to understand that this string refers primarily to a switching power supply adapter, not the printer head or mainboard.

In short: If you have a bt2016-r3-3094-ul-xprinter in your hand, you are holding a UL-certified power brick for an Xprinter thermal POS printer.

If you are searching for the exact SKU bt2016-r3-3094-ul-xprinter on second-hand markets (eBay, Alibaba, or liquidation sales), verify three things:

Cause: Out of paper or sensor misread. Fix: Perform a "Gap Calibration."

Dashboard