Ricoh Mp C3000 Service Manual

NCU Parameters 
SM 99 B786 
B786 
Fax Option 
Address Function  Unit Remarks 
68055B  International dial access code 
(High) 
68055C International dial access code 
(Low)  BCD 
For a code of 100: 
68055B - F1   
68055C - 00   
68055D  PSTN access pause time 
20 ms This time is waited for 
each pause input after 
the PSTN access code. 
If this address contains 
FF[H], the pause time 
stored in address 
68054F is used. 
Do not set a number 
more than 7 in the UK.  
68055E 
Progress tone detection level,...

NCU Parameters 
B786 100  SM 
Address Function Unit Remarks 
(parameter 07). 
680578  Minimum required length of the 
second and subsequent rings  20 ms 
SP2-103-009 
(parameter 08). 
680579 Ringing signal detection reset time 
(LOW)  SP2-103-010 
(parameter 09). 
68057A 
Ringing signal detection reset time 
(HIGH)  20 ms 
SP2-103-011 (parameter 
10). 
68057B 
to 
680580 Not used
 -  Do not change the 
settings. 
680581 Interval between dialing the last 
digit and switching the Oh relay 
over to the...

NCU Parameters 
SM 101 B786 
B786 
Fax Option 
Address Function  Unit Remarks 
frequency upper limit (low byte) 
6805A8  Acceptable CNG detection 
frequency lower limit (high byte) 
6805A9 Acceptable CNG detection 
frequency lower limit (low byte)  BCD (Hz) 
If both addresses 
contain FF(H), tone 
detection is disabled. 
6805AA 
Not used -  Do not change the 
setting. 
6805AB  CNG on time 
20 ms  Factory setting: 500 ms 
6805AC  CNG off time 20 ms  Factory setting: 3000 ms
6805AD Number of CNG cycles...

NCU Parameters 
B786 102  SM 
Address Function Unit Remarks 
6805B9  PABX: 2100 Hz tone transmission  
level  - N 6805B7 - 0.5N 6805B9 (dB) 
6805BD 
Modem turn-on level (incoming 
signal detection level)   -37-0.5N 
(dBm) 
  
6805BE 
to 
6805C6 Not used
 -  Do not change the 
settings. 
6805C7 Bits 0 to 3 – 
Not used 
Bit 4 = V.34 protocol dump   0:  Simple, 1: Detailed (default) 
Bits 5 to 7 –  Not used. 
6805C8 
to 
6805D9  Not used
 -  Do not change the 
settings. 
6805DA  T.30 T1 timer 
1 s   
6805E0...

NCU Parameters 
SM 103 B786 
B786 
Fax Option 
Address Function  Unit Remarks 
(Composite) 
0 Auto Bit 0 
1 Fixed 
0 Use RDTP 
Bit 0 sets the ring 
detection method, 
Bit 1 sets the ring 
detection method 
when fixed.   Bit 1 
1 Use RDTN 
Here is a summary of the voltages for the 
detection of off-hook  for DP detection. 
Bit 7  Bit 6  Bit 5  Bit 4  - 
0 0 0 0  Not used 
0 0 0 1 2.75 V 
0 0 1 0 5.5 V 
1 0 0 0 22 V 
6805E5 
1 1 1 1 41.25 V  If any setting is 
changed, select a 
setting that is higher...

NCU Parameters 
B786 104  SM 
ƒ  – 0.5 x N680552/680554–3.5 dBm  
ƒ  – 0.5 x N
680555 dBm 
Low frequency tone:  
ƒ  – 0.5 x (N
680552/680554 + N680553) –3.5 dBm  
ƒ  – 0.5 x (N
680555 + N680553) dBm 
 
ƒ N
680552, for example, means the value stored in address 680552(H) 
6.  68054A: Europe - Between Ds opening and Di  opening, France - Between Ds closing 
and Di opening 
68054D: Europe - Between Ds closing and  Di closing, France - Between Ds opening 
and Di closing 
7.  Tone signals which frequency is...

Dedicated Transmission Parameters 
SM 105 B786 
B786 
Fax Option 
4.5 DEDICATED TRANSMISSION PARAMETERS 
There are two sets of transmission parameters: Fax and E-mail 
Each Quick Dial Key and Speed Dial Code has eight bytes of programmable parameters 
allocated to it. If transmissions to a partic ular machine often experience problems, store 
that terminal’s fax number as a Quick Dial  or Speed Dial, and adjust the parameters 
allocated to that number. 
The programming procedure w ill be explained first....

Dedicated Transmission Parameters 
B786 106  SM 
Do not program a value between 79h and FEh. 
 Switch 01  
No  FUNCTION  COMMENTS 
Tx level 
Bit4 Bit3 Bit2 Bit1 Bit0  
0 0 0 0 0  0 
0 0 0 0 1  –1 
0 0 0 1 0  –2 
0 0 0 1 1  –3 
0 0 1 0 0  –4 
      
0 1 1 1 1  –15 
0-4 
1 1 1 1 1 Disabled  If communication with a particular 
remote terminal often contains 
errors, the signal level may be 
inappropriate. Adjust the Tx level for 
communications with that terminal 
until the results are better. 
If the...

Dedicated Transmission Parameters 
SM 107 B786 
B786 
Fax Option 
0 0 0 0 Not used 
0 0 0 1  2400 
0 0 1 0  4800 
0 0 1 1  7200 
0 1 0 0  9600 
0 1 0 1  12000 
0 1 1 0  14400 
0 1 1 1  16800 
1 0 0 0  19200 
1 0 0 1  21600 
1 0 1 0  24000 
1 0 1 1  26400 
1 1 0 0  28800 
1 1 0 1  31200 
1 1 1 0  33600 
1 1 1 1 Disabled 
Other settings:  Not used  rate may be too high. Reduce the initial Tx 
modem rate using these bits. 
For the settings 14.4 or kbps slower, Switch 
04 bit 4 must be changed to 0. 
 
ƒ  Do...

Dedicated Transmission Parameters 
B786 108  SM 
4 V.8 protocol 
0: Off 
1: Disabled  If transmissions to a spec
ific destination always 
end at a lower modem rate (14,400 bps or lower), 
disable V.8 protocol so as not to use V.34 
protocol.  
0: V.34 communication will not be possible. 
If the setting is “Disabled”, the bit switch setting is 
used. 
5  Compression modes available 
in transmit mode 
0: MH only 
1: Disabled  This bit determines the capabilities that are 
informed to the other terminal...