7 Xerox WorkCentre admin mode.

You can reset the admin password by going into "Engineer Mode". 
Try one of these methods, and hopefully one will get you into Engineer Mode:

Press on the number you need :

5632 7665 7345 57**

Xerox Workcentre 5632

1. Once turned on hold # and key together.
2. Enter 1934 to go into diagnostic mode.
3. Diagnostic routines > other routines > 001 reset Auditron master pin.

Xerox Workcentre 7665

Press * and # and "red stop" keys (together!) to access diag tools.

Xerox Workcentre 7345

1. Hold 0 for 5 seconds
2. Press Start at the same time - should enter engineer mode
3. Password = 6789
4. Reset admin password (I can't remember the actual menu name)
5. If you need to exit engineer mode:
5.1. Hold 0 for 5 seconds
5.2 Press Start at the same time

Xerox Workcentre 5755,5735,5745,5765,5775

1. Press and hold the # key for 5 seconds, then press the Login key.
2. Enter the PIN code 1934
3. Touch the Enter button on the UI.