macOS Sequoia and Sonoma may require you to disable SIP temporarily for non-certified drivers. Proceed with caution.

Look for a checked port. Ensure it is assigned to a virtual USB port (e.g., USB001 or USB002 ). If it is set to LPT1 or COM1 , change it to .

what's this mess. oh there is a thermal printer. and all sorts of paper with printouts to show it works some of which I did but I' How to set up thermal printer for Windows - Ship&co 5 Dec 2025 —

Go to Printer Properties > Ports tab. Switch from USB001 to USB002 or USB003 . Incorrect driver or baud rate

The JK5801H is a standard 58mm (2-inch) POS thermal receipt printer. It typically connects via USB and relies on standard ESC/POS printing commands. Because many manufacturers use generic internal chips for these 58mm printers, the JK5801H often shares drivers with other common brands like POS-58, Xprinter, or ZJiang. Where to Download the JK5801H Driver for Free

If you prefer a community-maintained version, there is a GOOJPRT Printer Driver repository on GitHub that includes the original CD files for many 58mm models. Installation Steps Thermal Receipt Printer Driver - POS-X

Installation and setup

This happens if the baud rate is mismatched or the driver is using the wrong emulation mode.