Lexmark 4227 - Manual (Page 59)

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Chapter 3: Using the Operator Panel
Using the Operator Panel
Disabling/Enabling the Operator
Panel
All buttons except the Start/Stop, FormFeed, and Load/Unload buttons
on the operator panel can be disabled. To disable the operator panel:
1
Turn the printer Off.
2
Press and hold Micro
↓
and Micro
↑
and then turn the printer On.
Note: When any button except Start/Stop, FormFeed, or Load/
Unload is pressed while the printer is disabled, the Operator
Panel Disabled message appears on the display for
approximately 2 seconds.
To enable the operator panel, repeat the above procedure.