V
- 33
WSW20
(Overseas communications mode setting)
Selector
No.
Function
Setting and Specifications
1
EP* tone prefix
0:
OFF
1:
ON
2
Overseas communications mode
(Reception)
0:
2100 Hz
1:
1100 Hz
3
Overseas communications mode
(Transmission)
0:
OFF
1:
Ignores DIS once.
4
5
Min. time length from reception of
CFR to start of transmission of
video signals
No.
4
5
0
0 :
100 ms
0
1 :
200 ms
1
0 :
300 ms
1
1 :
400 ms
6
7
Chattering elimination for CNG
detection
No.
6
7
0
0 :
A (During CNG ON and OFF)
0
1
:
B (During CNG OFF only)
1
X :
C (No elimination)
8
CNG detection on/off
0:
OFF
1:
ON
* EP: Echo protection
l
Selector 1:
EP tone prefix
Setting this selector to "1" makes the equipment transmit a 1700 Hz echo protection (EP) tone
immediately preceding training in V.29 modulation system to prevent omission of training signals.
Prefixing an EP tone is effective when the equipment fails to transmit at the V.29 modem speed and
always has to fall back to 4800 bps transmission.
l
Selectors 2 and 3: Overseas communications mode
These selectors should be used if the facsimile equipment malfunctions in overseas
communications. According to the communications error state, select the signal specifications.
Setting selector 2 to "1" allows the equipment to use 1100 Hz CED signal instead of 2100 Hz in
receiving operation. This prevents malfunctions resulting from echoes, since the 1100 Hz signal
does not disable the echo suppressor (ES) while the 2100 Hz signal does.
Setting selector 3 to "1" allows the equipment to ignore a DIS signal sent from the called station
once in sending operation. This operation suppresses echoes since the first DIS signal immediately
follows a 2100 Hz CED (which disables the ES) so that it is likely to be affected by echoes in the
disabled ES state. However, such a disabled ES state will be removed soon so that the second and
the following DIS signals are not susceptible to data distortion due to echoes. Note that some
models when called may cause error by receiving a self-outputted DIS.
l
Selectors 8: CNG detection on/off
If this selector is set to “1,” the equipment detects a CNG signal according to the condition preset by
selectors 2 and 3 of WSW18 after a line is connected. If it is set to “0,” the equipment detects a
CNG signal as long as the line is connected.
Содержание FAX 750
Страница 4: ...CHAPTER I GENERAL DESCRIPTION ...
Страница 11: ...CHAPTER II INSTALLATION ...
Страница 12: ...CHAPTER III THEORY OF OPERATION ...
Страница 14: ...III 1 1 OVERVIEW Not provided on the FAX 910 ...
Страница 24: ...III 11 Active Gears on the Inner Side of the Drive Unit ...
Страница 26: ...III 13 Active Gears on the Inner Side of the Drive Unit ...
Страница 30: ...III 17 Location of Sensors and Actuators 1 ...
Страница 31: ...III 18 Not provided on the FAX 910 Location of Sensors and Actuators 2 ...
Страница 34: ...III 21 FAX750 FAX770 FAX 910 FAX 920 FAX 921 MFC 925 FAX870MC FAX 930 FAX 931 MFC970MC ...
Страница 39: ...CHAPTER IV DISASSEMBLY REASSEMBLY LUBRICATION AND ADJUSTMENT ...
Страница 44: ...IV 4 n n Disassembly Order Flow ...
Страница 48: ...IV 8 4 Disconnect the panel main harness ...
Страница 52: ...IV 12 ...
Страница 70: ...IV 30 Remove the two screws and lift up the paper feed chute ...
Страница 72: ...IV 32 ...
Страница 78: ...IV 38 ...
Страница 86: ...IV 46 1 17 Harness Routing ...
Страница 88: ...IV 48 ...
Страница 89: ...IV 49 2 LF roller ASSY 3 Platen frame ASSY ...
Страница 90: ...IV 50 ...
Страница 91: ...IV 51 4 Separation roller and main frame ...
Страница 92: ...CHAPTER V MAINTENANCE MODE ...
Страница 99: ...V 6 Scanning Compensation Data List ...
Страница 144: ...V 51 FAX750 FAX770 FAX 910 FAX 920 FAX 921 MFC 925 FAX870MC FAX 930 FAX 931 MFC970MC Key Button Entry Order ...
Страница 150: ...CHAPTER VI ERROR INDICATION AND TROUBLESHOOTING ...
Страница 168: ...July 98 5X4401 Printed in Japan ...
Страница 177: ......
Страница 178: ......
Страница 182: ......
Страница 184: ......
Страница 197: ......
Страница 198: ......
Страница 202: ......
Страница 216: ......
Страница 218: ......