Ensure the USB cable is securely connected. If using a laptop, try a different USB port.
: Use the specific macOS driver. Note that recent versions of macOS might require extra permissions in "Security & Privacy" settings during installation. Mobile Support (Android Only) easy print es-9930u driver
: For specialized shipping services like Flash KA or Flash Printer, use the Windows operating system, as macOS support for these specific apps may be limited. driveres9930u - easyprinterthailand Ensure the USB cable is securely connected
For mobile users, the driver and application are strictly limited to Android . It is not available via the Play Store and must be downloaded as a separate file from the manufacturer's site. Performance & Compatibility use the Windows operating system