23
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
Not used.
8
CNG detection on/off
0: OFF
1: ON
* EP: Echo protection
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.
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.
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.
Summary of Contents for MFC-5100C
Page 1: ...FACSIMILE EQUIPMENT SERVICE MANUAL MODEL MFC5100C MFC590 ...
Page 4: ...CHAPTER 1 GENERAL DESCRIPTION ...
Page 11: ...CHAPTER 2 INSTALLATION ...
Page 19: ...CHAPTER 3 THEORY OF OPERATION ...
Page 39: ...CHAPTER 4 DISASSEMBLY REASSEMBLY LUBRICATION AND ADJUSTMENT ...
Page 114: ...4 73 7 Paper ejection roller gear and PF roller gear 8 Paper feed roller and PF spring ...
Page 116: ...4 75 11 Purge shaft ...
Page 119: ...4 78 Head Positioning Test Pattern ...
Page 120: ...CHAPTER 5 MAINTENANCE MODE ...
Page 127: ...5 6 Scanning Compensation Data List ...
Page 141: ...5 20 Vertical Alignment Check Pattern ...
Page 148: ...CHAPTER 6 ERROR INDICATION AND TROUBLESHOOTING ...
Page 173: ...MFC5100C MFC590 Appendix 1 EEPROM Customizing Codes ...
Page 176: ...MFC5100C MFC590 Appendix 2 Firmware Switches WSW ...
Page 220: ...A Main PCB 1 6 ...
Page 221: ...A Main PCB 2 6 ...
Page 222: ...A Main PCB 3 6 ...
Page 223: ...A Main PCB 4 6 ...
Page 224: ...A Main PCB 5 6 ...
Page 225: ...A Main PCB 6 6 ...
Page 226: ...R27 100 R28 100 R29 100 R30 100 B Relay PCB ...
Page 227: ...C NCU PCB ...
Page 228: ...D Control Panel PCB 1 2 ...
Page 229: ...D Control Panel PCB 2 2 ...
Page 230: ...E Power Supply PCB ...