Oki FAX 740 - Manual (Page 55)

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PC Interface On/Off
Your OKIFAX 740 is equipped with a serial interface for
connection to a serial ‘COM’ port on a PC.
This facility enables a PC running a fax program, such as
WinFax Pro or LaserFax, to send and receive fax messages
without the need for intermediate printing.
In order to use this facility you must first set the PC Interface
function to ON. If you wish to discontinue using this
facility, you must set the PC Interface function to OFF.
PC I/F MODE? Y/N
1. To turn this mode ON or OFF, press [YES] .
IF: ON=* OFF-#
The current setting, ON or OFF, will flash.
2. Press [ * ] to turn this facility ON, or [#] to turn it OFF.
3. Press [YES] to confirm your choice and return the
machine to standby.
Note: When an incoming or outgoing fax message is in
progress via the PC Interface, all buttons except [STOP]
are disabled. To halt the progress of a fax transaction
in this mode, press
[STOP] on the fax machine, or select
the STOP function within your PC fax program.