Brother FAX-1820C 用户手册

SETUP SEND   6 - 18

This feature allows you to prevent unauthorised access to the 
machine. When switched On, TX Lock prohibits most functions. The 
following functions listed are available while TX Lock is switched On.

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Receiving faxes

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Answering & making telephone calls with an external telephone

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Scheduled Delayed Transmission*

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Polling*

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Fax Forwarding*

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Remote Retrieval

* Provided it was set before TX Lock was switched ON.