Ricoh D197 Service Manual page 1486

Bit Switches - 4
Maximum allowable frame interval
4 during image data reception.
0: 5 s 1: 13 s
5 Not used
Reconstruction time for the first line in
6 receive mode
0: 6 s 1: 12 s
7 Not used
D3A5
This bit set the maximum interval
between EOL (end-of-line) signals and
the maximum interval between ECM
frames from the other end.
Try using a longer setting if error code
0-21 is frequent.
Do not change the settings.
When the sending terminal is controlled
by a computer, there may be a delay in
receiving page data after the local
machine accepts set-up data and sends
CFR. This is outside the T.30
recommendation. But, if this delay
occurs, set this bit to 1 to give the
sending machine more time to send data.
Refer to error code 0-20.
ITU-T T.30 recommendation: The first line
should come within 5 s of CFR.
Do not change the settings.
134 SM