: If your GUI tool is acting up, most Linux systems allow you to manage printers by typing http://localhost:631/ into your browser. This gives you direct access to the CUPS server.
Verify the file size; the legitimate gprintsettool-en-2.07 is typically between 850 KB and 1.8 MB. gprintsettool-en-2.07
Switch interface type to USB or verify the COM port number inside the Windows Device Manager. Misconfigured paper sensor threshold. : If your GUI tool is acting up,
If you encounter issues with gprintsettool-en-2.07 , consider: gprintsettool-en-2.07
Review specific calibration steps for black mark positioning on GZWangbai Tech Guides step-by-step instructions