Cause of error code 8X.YYYY EIO [Z] ERROR

The EIO accessory in slot [z] has encountered a critical error. [z] description: 1 = EIO slot 1—The printer detected an error with the EIO accessory. 2 = EIO slot 2—The printer detected an error with the EIO accessory. 6 = EIO slot 1—The EIO accessory detected an error. 7 = EIO slot 2—The EIO accessory detected an error.

Solution for error code 8X.YYYY EIO [Z] ERROR

1. Turn the printer off, and then turn the printer on. 2. Turn the printer off, reseat the EIO accessory in slot [z], and then turn the printer on. 3. Turn the printer off, remove the EIO accessory from slot [z], install it in a different EIO slot, and turn the printer on. 4. Replace the EIO accessory in slot [z].