App.
4-24
Confidential
WSW20
(Overseas communications mode setting) (Not used.)
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
At CNG detection, elimination
of chattering noise
No. 6
7
0
0 : Yes, at both ON/OFF timings
0
1 : Yes, at OFF timing
1
0
:
No
1
1
:
No
8
Limitation on CNG detection
0: OFF
1: ON
ms: millisecond(s)
* EP: Echo protection
NOTE:
Selectors 6 and 7 are applicable to models equipped with an SDAA circuit.
Selector 1: EP tone prefix
Setting this selector to "1" makes the machine 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 useful when the machine fails to transmit at the V.29 modem speed and
always has to fall back to 4,800 bps transmission.
The setting made by this selector takes effect only when the Overseas Mode is set to ON.
Selectors 2 and 3: Overseas communications mode
These selectors should be used if the machine malfunctions in overseas communications. According
to the communications error state, select the signal specifications.
Setting selector 2 to "1" allows the machine 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 machine 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.
The setting made by selector 3 takes effect only when the Overseas Communications Mode is set to
ON. (The setting made by selector 2 is always effective.)
Summary of Contents for DCP 330C - Color Inkjet - All-in-One
Page 1: ...Confidential MULTIFUNCTION EQUIPMENT SERVICE MANUAL MODELS DCP750CW DCP540CN DCP330C DCP130C ...
Page 9: ...vii Confidential Legal limitations for copying ...
Page 10: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
Page 16: ...1 5 Confidential 1 2 CONTROL PANEL Models with color LCD 1 2 3 4 5 10 9 8 7 6 Color Black ...
Page 17: ...1 6 Confidential Ink ...
Page 18: ...1 7 Confidential Models with monochrome LCD 1 2 3 4 5 10 9 8 7 6 ...
Page 19: ...1 8 Confidential ...
Page 21: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 39: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 88: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
Page 131: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 209: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 222: ...7 11 Confidential Head Positioning Test Pattern ...
Page 226: ...7 15 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Page 227: ...7 16 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Page 229: ...7 18 Confidential Vertical Alignment Check Patterns 600DPI 1200DPI ...
Page 232: ...7 21 Confidential Margin Check Pattern ...
Page 241: ...Confidential CHAPTER 8 CLEANING ...
Page 245: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Page 253: ...9 6 Confidential Scanning Compensation Data List a b c d e f i ...
Page 256: ...9 9 Confidential Test Pattern ...
Page 261: ...9 14 Confidential Configuration List ...
Page 269: ...9 22 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Page 270: ...9 23 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Page 275: ...9 28 Confidential Vertical Alignment Check Patterns 600DPI 1200DPI ...
Page 278: ...9 31 Confidential Margin Check Pattern ...
Page 381: ...Confidential Power supply PCB U S A and Canadian models ...
Page 382: ...Confidential Power supply PCB European Asian and Oceanian models ...
Page 383: ...Confidential January 07 SM FAX054 8CAA01 2 Printed in Japan ...