HP Officejet Lx All-in-One - Manual (Page 43)

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Enabling Silent Detect
The Silent Detect setting controls whether or not you can receive faxes from older-model fax machines that
don't emit a fax signal during fax transmissions. At the time of publication, these silent models represent
about 5% of the fax machines in use.
The factory setting is Silent Detect=Off . It should be changed only when all these conditions are true:
:
Y ou have a telephone answering machine connected directly to the HP OfficeJet LX.
:
The Receive Mode is set to Fax/TAM.
:
You expect to receive a fax from an older-model fax machine.
Enabling Remote Service
The factory setting is Remote Service=Off . If you've contacted Hewlett-Packard for service, you may be asked
to change this setting so that a service representative can diagnose your problem from a remote location.
After the problem has been diagnosed, you can change the setting back to
Remote Service=Off so your HP
OfficeJet LX cannot be remotely accessed.