The wrong PCL/PostScript driver is installed (e.g., PCL5 vs. PCL6). Fix: The d-Copia 5000MF typically works best with PCL6 or PS (PostScript) for macOS. Uninstall the current driver and select the PCL6 version from the official package.
(PostScript compatible) driver may be preferred for specialized graphic layouts. Connection : If connecting via Network (LAN) olivetti d-copia 5000mf driver