Ricoh D067, Service Manual

Page: 580 / 676

Bit Switches
SM Appendix 7-41 D067/D068/D069/D072
Appe
ndix:
Fax Service
Progra
m
Communication Switch 01 [SP No. 1-104-002]
No FUNCTION COMMENTS
0
ECM
0: Off 1: On
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.
1-5 Not used Do not change the setting.
6-7
Maximum printable page
length available
Bit 7: 0 Bit 6: 0 = No limit
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
The setting determined by these bits is informed to
the transmitting terminal in the pre-message
protocol exchange (in the DIS/NSF frames).
Communication Switch 02 [SP No. 1-104-003]
No FUNCTION 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)
¤
12(H)
200 dpi 12(L)
¤
24(H)
300 dpi 18(L)
¤
36(H)
0
G3 Burst error threshold
0: Low 1: High
400 dpi 24(L)
¤
48(H)
1
Acceptable total error line ratio
0: 5% 1: 10%
If the error line ratio for a page exceeds the
acceptable ratio, RTN will be sent to the other end.