V
- 35
WSW23
(Communications setting)
Selector
No.
Function
Setting and Specifications
1
Starting point of training check
(TCF)
0: From the head of a series of zeros
1: From any arbitrary point
2
3
Allowable training error rate
No.
2
3
0
0
:
0%
0
1
:
0.5%
1
0
:
1%
1
1
:
2%
4
5
Decoding error rate for
transmission of RTN
No.
4
5
0
0
:
16%
0
1
:
14%
1
0
:
10%
1
1
:
8%
6
7
Not used.
8
Limitation of attenuation level
0:
Yes
1:
No
NOTE:
Selector 8 is not applicable to the French versions.
l
Selector 1:
Starting point of training check (TCF)
At the training phase of receiving operation, the called station detects for 1.0 second a training
check (TCF) command, a series of zeros which is sent from the calling station for 1.5 seconds to
verify training and give the first indication of the acceptability of the line.
This selector sets the starting point from which the called station should start counting those zeros.
If this selector is set to "0," the called station starts counting zeros 100 ms after the head of a
series of zeros is detected.
If it is set to "1," the called station starts counting zeros upon detection of 10-ms successive zeros
50 ms after the head of a series of zeros is detected. In this case, if the detection of 10-ms
successive zeros is too late, the data counting period will become less than 1.0 second, making
the called station judge the line condition unacceptable.
l
Selectors 2 and 3: Allowable training error rate
The called station checks a series of zeros gathered in training (as described in Selector 1)
according to the allowable training error rate set by these selectors. If the called station judges the
line condition to be accepted, it responds with CFR; if not, it responds with FTT.
l
Selectors 4 and 5: Decoding error rate for transmission of RTN
The machine checks the actual decoding errors and then transmits an RTN according to the
decoding error rate (Number of lines containing an error per page ÷ Total number of lines per
page) set by these selectors.
l
Selector 8:
Limitation of attenuation level
Setting this selector to "0" limits the transmitting level of the modem to 10 dB.
This setting has priority over the settings selected by WSW02 (selectors 5 through 8) and WSW13
(selectors 5 through 8).
Summary of Contents for 1920CN - Color Inkjet - Fax
Page 1: ...MULTI FUNCTION CENTER SERVICE MANUAL MODEL MFC9600 MFC9850 MFC9870 DCP1200 MFC9750 ...
Page 5: ...CHAPTER I GENERAL DESCRIPTION ...
Page 26: ...CHAPTER II INSTALLATION ...
Page 27: ...CHAPTER II INSTALLATION CONTENTS 1 INSTALLING THE UPDATE DATA TO THE MACHINE II 1 ...
Page 30: ...CHAPTER III THEORY OF OPERATION ...
Page 32: ...III 1 1 OVERVIEW Provided on models supporting facsimile function ...
Page 36: ...III 5 2 2 Laser Printing Mechanism 2 2 1 Paper pick up and registration mechanism ...
Page 42: ...III 11 Location of Sensors and Actuators ...
Page 44: ...CHAPTER IV DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 49: ...IV 3 n n Disassembly Order Flow ...
Page 96: ...IV 50 Setting up the main PCB after replacement ...
Page 106: ...IV 60 ...
Page 108: ...IV 62 2 Scanner mount ...
Page 109: ...IV 63 3 Drive gear ASSY ...
Page 110: ...IV 64 4 Paper cassette ...
Page 111: ...CHAPTER V MAINTENANCE MODE ...
Page 118: ...V 6 Scanning Compensation Data List ...
Page 167: ...V 55 MFC9600 DCP1200 MFC9850 9870 MFC9750 Key Button Entry Order ...
Page 172: ...CHAPTER VI ERROR INDICATION AND TROUBLESHOOTING ...
Page 200: ...VI 27 Location of High voltage Contacts and Grounding Contacts ...
Page 201: ...VI 28 ...
Page 202: ...MFC9600 DCP1200 MFC9750 MFC9850 MFC9870 Appendix 1 EEPROM Customizing Codes ...
Page 206: ...A Main PCB 1 7 ...
Page 207: ...A Main PCB 2 7 ...
Page 208: ...A Main PCB 3 7 ...
Page 209: ...A Main PCB 4 7 ...
Page 210: ...A Main PCB 5 7 ...
Page 211: ...A Main PCB 6 7 ...
Page 212: ...A Main PCB 7 7 ...
Page 213: ...B Engine PCB ...
Page 214: ...C NCU PCB U S A Canada ...
Page 217: ...C NCU PCB Asia ...
Page 218: ...D Control Panel PCB MFC9600 MFC9850 MFC9870 ...
Page 219: ...D Control Panel PCB 1 2 DCP1200 MFC9750 ...
Page 220: ...D Control Panel PCB 2 2 DCP1200 MFC9750 ...
Page 221: ...E Relay PCB ...
Page 222: ...F Power Supply PCB 100 120V Low voltage power supply ...
Page 223: ...F Power Supply PCB 200 240V Low voltage power supply ...
Page 224: ...F Power Supply PCB High voltage power supply ...
Page 225: ...Jan 00 SM8C5401 Printed in Japan ...
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Page 256: ...PL8C5433 Ver D ...
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Page 286: ...PL8C5405 Ver K ...