❏If you are using the USB interface, make sure your cable meets the USB 1.1 or 2.0 standards.

❏If you are connecting the printer to your computer via a USB hub, connect the printer to the first-tier hub from your computer. If the printer driver is still not recognized on your computer, try to directly connect the printer to your computer without the USB hub.

❏If you are connecting the printer to your computer via a USB hub, make sure the USB hub device is recognized by your computer.

❏Turn off the printer and the computer, disconnect the printer’s interface cable, then print an operation check page.

&See “Running a Printer Operation Check (for B-500DN Users)” on page 158.

&See “Running a Printer Operation Check (for B-300 Users)” on page 159.

If the check page prints correctly, make sure the printer driver and your application are installed correctly.

❏If you are trying to print a large image, your computer may not have enough memory. Try reducing the resolution of your image or printing the image at a smaller size. You may need to install more memory in your computer.

❏Uninstall the printer driver, then reinstall it.

& See “Uninstalling the Printer Software” on page 17.

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