Ricoh M0A0 Service Manual page 667

The four-digit hexadecimal value (N) after "L" indicates the RX level.
The high byte is given first, followed by the low byte. Divide the decimal value of N by -16 to get the RX level.
In the above example, the decimal value of N (= 0100 [H]) is 256.
So, the actual RX level is 256/-16 = -16 dB
3 Not used
4 Line error mark print
0: OFF, 1: ON (print)
5 G3 communication parameter
display
0: Disabled
1: Enabled
6 Protocol dump list output after
each communication
0: Off
1: On
7 Not used
G3 Communication Parameters
Modem rate
Resolution
Compression mode
Communication mode
Do not change this setting.
When "1" is selected, a line error mark is printed on the printout if a line error
occurs during reception. This shows error locations when ECM is turned off.
This is a fault-finding aid. The LCD shows the key parameters (see "G3
Communication Parameters" below this table). This is normally disabled
because it cancels the CSI display for the user.
Be sure to reset this bit to "0" after testing.
This is only used for communication troubleshooting. It shows the content of
the transmitted facsimile protocol signals. Always reset this bit to 0 after
finishing testing.
If system switch 09 bit 6 is at "1", the list is only printed if there was an error
during the communication.
Do not change the setting.
336: 33600 bps
312: 31200 bps
288: 28800 bps
264: 26400 bps
240: 24000 bps
216: 21600 bps
192: 19200 bps
S: Standard (8 x 3.85 dots/mm)
D: Detail (8 x 7.7 dots/mm)
F: Fine (8 x 15.4 dots/mm)
SF: Superfine (16 x 15.4 dots/mm)
21: Standard (200 x 100 dpi)
22: Detail (200 x 200 dpi)
44: Superfine (400 x 400 dpi)
MMR: MMR compression
MR: MR compression
MH: MH compression
JBO: JBIG compression (Optional mode)
JBB: JBIG compression (Basic mode)
ECM: With ECM
168: 16800 bps
144: 14400 bps
120: 12000 bps
96: 9600 bps
72: 7200 bps
48: 4800 bps
24: 2400 bps
4.Service Tables
41