This means the wrong driver command set is active.

Some XP-K200L models require specific dip switch configurations on the bottom of the unit to enable certain emulation modes.

What are you trying to print from (e.g., Square, Loyverse, Shopify)?

: Download Here (Look for "Bill product driver" or "Receipt printer driver"). Mac OS Driver : Download Here . Linux Driver : Available in the general Download section . Step-by-Step Installation Guide (Windows)

Once you have the legitimate driver file (named something like XPRINTER_XPK200L_Driver_V2.3.1.zip ), follow these steps. Do not connect the printer until instructed.