1. ON ITU-T (International Telecommunications' Union.)
The No. XIV Group of ITU-T, one of the four permanent
organizations of the International Telecommunications Uniib
(ITU), investigates and make recommendations on international
standards for facsimiles.
2. Definition of Each Group
- Group I (G1)
A-4 size documents without using formats which reduce the band
width of a signal sent over telephone lines. / Determined in 1968. /
Transmission for about 6 minutes at scanning line density of 3.85
lines/mm.
- Group II (G2)
Using reduction technology in the modulation/demodulation
format, an A-4 size document is sent at an official scanning line
density of 3.85 lines/mm for about 3 minutes. / Methods to
suppress redundancy are not used. / Determined in 1976.
- Group III (G3)
A method of suppressing redundancy in the image signal prior to
modulation is used. An A-4 size document is sent with about one
minute. / Determined in 1980.
- Group IV (G4)
Transmission is via the data network. A method is provided for
suppressing redundancy in signals prior to transmission, and
error-free reception of transmission is possible. / The scope of
these facsimile applications is not limited simply to transmission
of written statements. Through symbiotic linkages with other
communication methods, it can be expected to expand to include
integrated services.
3. Facsimile Call Time Series
As shown in the following diagram, the facsimile call time series is divided into five phases.
147
Содержание KX-FT71LA-B
Страница 10: ...1 11 2 CCIT NO 2 TEST CHART 10 ...
Страница 11: ...1 12 LOCATION OF CONTROLS 1 12 1 OVERVIEW 11 ...
Страница 22: ...22 ...
Страница 32: ...4 Close the cover securely by pushing down on both sides 32 ...
Страница 33: ...5 Tear off the excess paper by pulling it towards you 33 ...
Страница 41: ...CROSS REFERENCE SENSOR SECTION DISASSEMBLY INSTRUCTIONS 2 3 4 3 MULTIPLE FEED 41 ...
Страница 42: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 2 3 4 4 SKEW 42 ...
Страница 43: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 2 3 4 5 IMAGE IS DISTORTED WHEN PRINTING 43 ...
Страница 45: ...CROSS REFERENCE DIGITAL BOARD SECTION TEST FUNCTIONS 2 3 4 7 SKEWED RECEIVING IMAGE 45 ...
Страница 47: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 47 ...
Страница 59: ...Error code table 59 ...
Страница 62: ...62 ...
Страница 63: ...CROSS REFERENCE TEST FUNCTIONS 63 ...
Страница 64: ...CROSS REFERENCE TEST FUNCTIONS 64 ...
Страница 65: ...CROSS REFERENCE TEST FUNCTIONS 65 ...
Страница 66: ...CROSS REFERENCE TEST FUNCTIONS 66 ...
Страница 67: ...67 ...
Страница 68: ...68 ...
Страница 69: ...69 ...
Страница 75: ...Normal Wave Patterns 75 ...
Страница 78: ...CROSS REFERENCE NG EXAMPLE CHECK THE STATUS OF THE DIGITAL BOARD 78 ...
Страница 79: ...CROSS REFERENCE CHECK THE STATUS OF THE DIGITAL BOARD 2 3 6 2 NG EXAMPLE 79 ...
Страница 84: ...84 ...
Страница 85: ...85 ...
Страница 86: ...86 ...
Страница 90: ...2 3 11 READ SECTION Refer to SCANNING BLOCK 2 3 12 THERMAL HEAD SECTION Refer to THERMAL HEAD 90 ...
Страница 92: ...2 4 3 USER MODE The list below is an example of the SYSTEM SETUP LIST the unit prints out 92 ...
Страница 93: ...Note The above values are the default values 2 4 4 SERVICE FUNCTION TABLE 93 ...
Страница 103: ...3 DISASSEMBLY INSTRUCTIONS 3 1 HOW TO REMOVE THE HANDSET CRADLE CABINET HOOK BUTTON AND SPEAKER 103 ...
Страница 104: ...3 2 HOW TO REMOVE THE OPERATION BLOCK 104 ...
Страница 105: ...3 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 105 ...
Страница 106: ...3 4 HOW TO REMOVE THE BOTTOM FRAME AND ANALOG BOARD 106 ...
Страница 107: ...3 5 HOW TO REMOVE THE DIGITAL POWER SUPPLY BOARD AND AC INLET 107 ...
Страница 108: ...3 6 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER 108 ...
Страница 109: ...3 7 HOW TO REMOVE THE MOTOR AND GEARS OF MOTOR BLOCK 109 ...
Страница 110: ...3 8 HOW TO REMOVE THE IMAGE SENSOR CIS 110 ...
Страница 111: ...3 9 HOW TO REMOVE THE DOCUMENT FEED ROLLER 111 ...
Страница 112: ...3 10 HOW TO REMOVE THE THERMAL HEAD 112 ...
Страница 113: ...3 11 INSTALLATION POSITION OF THE LEAD WIRES 113 ...
Страница 117: ...4 4 BRIDGE MODIFICATION PROCEDURE 5 CIRCUIT OPERATIONS 5 1 CONNECTION DIAGRAM 117 ...
Страница 122: ...38 VSS DG Ground 122 ...
Страница 140: ...5 4 6 3 2 SCANNING CROSS REFERENCE SENSOR SECTION 5 4 6 3 3 PRINTING 140 ...
Страница 141: ...Note See 6 5 SENSERS AND SWITCHES 5 4 6 3 4 COPYING 141 ...
Страница 163: ...8 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 8 1 OPERATION PANEL SECTION 163 ...
Страница 164: ...164 ...
Страница 165: ...8 2 UPPER CABINET SECTION 165 ...
Страница 166: ...8 3 LOWER CABINET P C B SECTION CROSS REFFERENCE MOTOR SECTION 8 4 MOTOR SECTION 166 ...
Страница 167: ...8 5 ACTUAL SIZE OF SCREWS 167 ...
Страница 168: ...9 ACCESSORIES AND PACKING MATERIALS 10 REPLACEMENT PARTS LIST 168 ...
Страница 179: ...L3 PQ4R10XJ000 0 S 179 ...