Canon iPF PRO-4000 Main PCB Unit, QM4-4221-000, GENUINE. If your Pro 4000 needs a replacement, this will get you back up & running. I also have a new one available, along with many other Pro 4000 parts. This item is in the category "Business & Industrial\Printing & Graphic Arts\Plotters & Wide Format Printers".
The seller is "expoartframesllc" and is located in this country: US. This item can be shipped to United States.