• Code: 79.XXXX
• Display: 79.XXXX - ERROR
• Description: A critical hardware error occurred.
• Remedy: Turn the product off and then on.

• Code: 8X.YYYY
• Display: 8X.YYYY EIO ERROR
• Description: The EIO accessory card encountered a critical error, as specified by YYYY.
• Remedy: Try the following actions to clear the message: 1. Turn the product off and then on. 2. Turn the product off, reseat the EIO accessory, and then turn the product on. 3. Replace the EIO accessory.

• Code: 8X.YYYY
• Display: 8X.YYYY EMBEDDED JETDIRECT ERROR
• Description: The embedded HP Jetdirect print server encountered a critical error, as specified by YYYY.
• Remedy: Turn the product off and then on.