Xerox WORKCENTRE 7428 System Administrator Manual page 86

Security
10. Touch Close to return to the Tools tab.
11. Press the Log In/Out button.
12. Select Log Out.
13. Place a copy in the document feeder of the printer and press the Start button.
14. Place the copy just made into the document feeder of the same, or an identical model, machine,
and attempt to make a copy. Note that copying of this document is prohibited.
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System Administrator Guide