Ricoh FAX680MP Service Manual page 21

31 March, 1997
RING DETECTION
For reception, the settings of "number of rings to answer" parameters of the
machine and the fax application determine which one receives a call. While the
PC-FAX function is enabled (Function 47), the machine waits 3 additional rings
after the number of rings programmed with NCU parameter "RID4" has passed, so
that the host computer's fax application answers the call before the fax machine.
NOTE: 1) Because of the above, the "number of rings to answer" parameter of the
fax application should be between 1 and 3. As small number as
possible is recommended.
2) A host computer may not be able to receive faxes with this machine
using some PC fax applications. In such cases, the fax machine itself
will receive and print the incoming fax message.
AT COMMANDS
Use these commands on the PC to display or adjust various parameters.
COMMAND
AT+FMFR?
ATROMVER
ATL<value>
AT&P
AT&F
AT&D
AT+X
ATX
ATZ<value>
ATM<value>
ATV<value>
AT+D<value>
AT+H
AT+A
ACTION
Displays "TOSHIBA"
Displays the ROM
version.
Adjusts the speaker
volume.
Not used.
Not used.
Not used.
Changes the tone
detection setting
= AT+X
Reset command.
Speaker ON/OFF
Result code format
Dial
+H0: NCU activated
+H1: NCU deactivated
Answer
2-9
COMMAND
ATD<value> = AT+D
ATH = AT+H
ATA = AT+A
ATE Result code format
AT+FTS HDLC tx delay time
AT+FTH HDLC frame tx
AT+FTM=? Displays
"24,48,72,96"
AT+FRS HDLC rx delay time
AT+FRH HDLC frame tx
AT+FRM=? Displays
"24,48,72,96"
ATSx=<value> Not used.
AT+FCLASS= 0, 1
AT+FCLASS? 0, 1
PC INTERFACES
ACTION