Ricoh D129 Service Manual page 1087

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 25: 2.5 ms/line
40: 40 ms/line
SM

"40" is displayed while receiving a fax message using AI
short protocol.
69
Bit Switches - 1
D629