App. 4-28
Confidential
WSW23
(Communications setting)
Note:
Selector 8 is not applicable to the French models.
• 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
milliseconds 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-millisecond
successive zeros 50 milliseconds after the head of a series of zeros is detected. In this case,
if the detection of 10-millisecond 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.
• 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.
• 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.
• Selector 8: Limitation of attenuation level
Setting this selector to "0" limits the transmitting level of the modem to 10 dB (1 dB in
France).
This setting has priority over the settings selected by WSW02 (selectors 5 through 8) and
WSW13 (selectors 5 through 8).
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
Summary of Contents for MFC-J220
Page 8: ...vi Confidential SAFETY PRECAUTIONS Symbols used in the documentation ...
Page 9: ...vii Confidential ...
Page 10: ...viii Confidential ...
Page 11: ...ix Confidential ...
Page 12: ...x Confidential ...
Page 13: ...xi Confidential ...
Page 14: ...xii Confidential ...
Page 15: ...xiii Confidential ...
Page 16: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
Page 20: ...1 3 Confidential 1 2 CONTROL PANEL DCP375CW ...
Page 21: ...1 4 Confidential ...
Page 22: ...1 5 Confidential DCP395CN ...
Page 23: ...1 6 Confidential ...
Page 24: ...1 7 Confidential MFC255CW 295CN ...
Page 25: ...1 8 Confidential ...
Page 26: ...1 9 Confidential MFC495CW ...
Page 27: ...1 10 Confidential ...
Page 28: ...1 11 Confidential MFC795CW ...
Page 29: ...1 12 Confidential ...
Page 30: ...1 13 Confidential DCPJ125 J315W J515W J715W 8 7 6 5 1 2 4 3 ...
Page 31: ...1 14 Confidential ...
Page 32: ...1 15 Confidential MFCJ220 J265W J270W J410 J410W J415W J615W J630W 6 7 8 5 2 4 3 1 ...
Page 33: ...1 16 Confidential Mono Start Colour Start ...
Page 34: ...1 17 Confidential DCPJ140W 6 7 8 5 2 4 3 1 ...
Page 37: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 39: ...Confidential 2 12 PAPER 2 42 2 12 1 Paper Specifications 2 42 2 12 2 Printable Area 2 44 ...
Page 84: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 130: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
Page 135: ...4 3 Confidential For MFC only Replace Ink ...
Page 187: ...Confidential CHAPTER 5 HANDLING DATA HELD IN THE MACHINE PRIOR TO REPAIR ...
Page 191: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 193: ...Confidential 6 2 LUBRICATION 6 103 ...
Page 302: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 309: ...7 5 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Page 318: ...7 14 Confidential Head Positioning Test Pattern ...
Page 325: ...7 21 Confidential Vertical Alignment Check Pattern A 1 2 ...
Page 326: ...7 22 Confidential Vertical Alignment Check Pattern A 2 2 ...
Page 327: ...7 23 Confidential Vertical Alignment Check Pattern B ...
Page 331: ...7 27 Confidential Left Right and Bottom Margins Check Pattern ...
Page 342: ...7 38 Confidential ADF Copy Chart A B C D ...
Page 345: ...Confidential CHAPTER 8 CLEANING ...
Page 349: ...8 3 Confidential Maintenance unit Head wiper Head cap unit cleaning_duplex Rubycel stick ...
Page 350: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Page 359: ...9 7 Confidential Scanning Compensation Data List Models except DCPJ140W DCPJ140W ...
Page 362: ...9 10 Confidential Test Pattern ...
Page 367: ...9 15 Confidential Configuration List ...
Page 372: ...9 20 Confidential MFC255CW 295CN MFC495CW MFC795CW DCPJ125 J315W J515W J715W Key Entry Order ...
Page 373: ...9 21 Confidential DCPJ140W MFCJ220 J265W J270W J410 J410W J415W J615W J630W Key Entry Order ...
Page 397: ...9 45 Confidential Vertical Alignment Check Pattern A 1 2 ...
Page 398: ...9 46 Confidential Vertical Alignment Check Pattern A 2 2 ...
Page 399: ...9 47 Confidential Vertical Alignment Check Pattern B ...
Page 403: ...9 51 Confidential Left Right and Bottom Margins Check Pattern ...
Page 439: ...App 2 3 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Page 521: ...App 5 3 Confidential DCPJ515W ...
Page 522: ...App 5 4 Confidential DCPJ715W MFCJ615W J630W ...
Page 523: ...App 5 5 Confidential DCPJ125 J315W MFCJ220 J265W J270W J410 J410W J415W ...
Page 524: ...App 5 6 Confidential DCPJ140W ...
Page 534: ...App 6 9 Confidential B Power supply PCB 200 V series ...