| Symptom | Likely Driver Issue | Solution | |--------|----------------------|----------| | Printer shows “Offline” but is powered on | USB driver collision or Windows Power Management suspended the port | Disable USB selective suspend in Power Options, then reinstall driver | | Prints garbled characters or partial images | Wrong driver model (e.g., generic text driver) | Delete printer, reinstall correct ZXP3 driver, ensure “Print as Image” is unchecked | | Status Monitor shows “Unknown ribbon” | Driver database missing ribbon ID | Update driver to latest version (v5.1.12 or newer) | | Job stuck in queue but printer idle | Spooler settings conflicting with bidirectional mode | In driver Properties → Ports, disable “SNMP Status Enabled” |