Ricoh D158 Service Manual page 901

G3 Communication Parameters
336: 33600 bps
312: 31200 bps
288: 28800 bps
Modem rate 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)
Resolution
21: Standard (200 x 100 dpi)
22: Detail (200 x 200 dpi)
MMR: MMR compression
MR: MR compression
Compression
MH: MH compression
mode
JBO: JBIG compression (Optional mode)
JBB: JBIG compression (Basic mode)
Communication ECM: With ECM
mode NML: With no ECM
A4: A4 (8.3"), no reduction
Width and
B4: B4 (10.1"), no reduction
reduction
A3: A3 (11.7"), no reduction
0: 0 ms/line
5: 5 ms/line
10: 10 ms/line
20: 20 ms/line
I/O rate
40: 40 ms/line
SM
168: 16800 bps
144: 14400 bps
120: 12000 bps
96: 9600 bps
72: 7200 bps
48: 4800 bps
24: 2400 bps

"40" is displayed while receiving a fax message using AI
short protocol.
59
Bit Switches - 1
D702