Ricoh M156, Service Manual

Page: 98 / 169

Service Program Mode
SM 5-11 M156/M157/M176/M177
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Fax Maintenance
T4 Timer
Set the time length for the T4 timer.
[3 Sec (Default/ 4.5 Sec]
RX Settings
Silence Detection
Silence (No tone) detection time (Rx mode :
FAX/ TAD Only)
After the line is connected via the external
telephone, the machine can detect silence
(no tone) for the time length specified by this
setting.
[30 sec (Default)]
CNG Tone
Detection
CNG tone detection time ( RX mode : FAX /
TEL, FAX / TAD Only)
After the line is connected via the external
telephone, the machine can detect a CNG
signal for the time length specified by this
setting.
[5 Sec (Default)/ 10 Sec]
CNG Cycles
Number of CNG cycles to be detected
This setting is only effective for FAX/TAD
mode.
[1.5 Cycle (Default)/ 2.0 Cycle]
RX Settings
Tone Sound
Monitoring
Determines the period when tones from the
line are monitored.
[No Monitoring/ Up To Phase B (Default)/ All
TX Phases]
Stop/Clear Key
Pressing the Stop/Clear key can stop the
current receiving operation. Received data is
lost.
[No Functional (Default)/ Functional]
Off-Hook
Detection
Sets the Off-Hook detection period.
200 msec (Default)/ 800 msec
TX Settings Redial Interval
Sets the redial interval when Tx fails.
[5 Min (Default)/ 6 Min]