Ricoh Aficio MP201SPF Service Manual page 475

Communication Switch 01 [SP No. 1-104-002]
No FUNCTION
ECM
0
0: Off 1: On
1-5 Not used
Maximum printable page
length available
Bit 7: 0 Bit 6: 0 = No limit
6-7
Bit 7: 0 Bit 6: 1 = B4 (364 mm)
Bit 7: 1 Bit 6: 0 = A4 (297 mm)
Bit 7: 1 Bit 6: 1 = Not used
Communication Switch 02 [SP No. 1-104-003]
No FUNCTION
G3 Burst error threshold
0
0: Low 1: High
Acceptable total error line ratio
1
0: 5% 1: 10%
SM Appendix
COMMENTS
If this bit is set to 0, ECM is switched off for all
communications.
In addition, V.8 protocol and JBIG compression
are switched off automatically.
Do not change the setting.
The setting determined by these bits is informed to
the transmitting terminal in the pre-message
protocol exchange (in the DIS/NSF frames).
COMMENTS
If there are more consecutive error lines in the
received page than the threshold, the machine will
send a negative response. The Low and High
threshold values depend on the sub-scan
resolution, and are as follows.
100 dpi 6(L) Õ 12(H)
200 dpi 12(L) Õ 24(H)
300 dpi 18(L) Õ 36(H)
400 dpi 24(L) Õ 48(H)
If the error line ratio for a page exceeds the
acceptable ratio, RTN will be sent to the other end.
5-37
Bit Switches
D115/D116