Lexmark X940e 用户手册
![Lexmark](https://files.manualsbrain.com/attachments/878cae5fca737841ce37f41a7ee73881a8b54f60/common/fit/150/50/823435a5b9c868f91a4b7f8b99ddfd9b9c699edf1f6ff104003e82a92d7f/brand_logo.png)
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Click TCP/IP Port Access.
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Select the Secure Mode Active check box.
Note: If Secure Mode Active is gray or not selectable, create an administrative password and try again.
7
Select a setting for each listed port, and then click Submit.
There are three ways to configure the TCP and UDP network ports:
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Disabled—Port is disabled and never allows network connections
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Secure and Unsecure—Port is always open including when the printer is in Secure mode
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Unsecured Only—Port is open only when printer is in Secure mode
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