You are asking for a Firmware that is 3 years old, won't work in Windows 10 for scan and is 10 releases behind the latest, you would need to call Xerox and have a technician dispatched to load it and source it (Xerox does not keep a public archive of firmware that was replaced for faults)
The latest version for your 57XX device is 061.132.227.07000 but due to Xerox.com being down still, it can't be obtained right now.