I have the IM2330 which I think is the same as the ES 233 or the family of the 280 and more. My screen is lock up and never goes ready. I did discover that my hard drive was bad and replaced it. This copier will not allow me to get into service mode.My understanding now is that I need the firmware, which I don't have access too. If anyone has the firmware that I can download it will be greatly appreciated. Thanks, John