If your machine is asking for a "Passcode" or "Authorization" to access system settings, you should first try the factory defaults: device serial number Finding the Serial Number:
You may encounter third-party videos or websites claiming to offer "auto code generator" tools. Use these with extreme caution: xerox 5855 authorization code generator
When using a Xerox 5855 authorization code generator, keep the following safety precautions and best practices in mind: If your machine is asking for a "Passcode"