(Cause and Countermeasure)
As shown in the chart above, the total handshaking time must be reduced, but because of the long distance connection and
linking of several stations, the line connection time cannot be reduced. Accordingly, the following countermeasures should be
tried.
(A)... As the 35 sec. count is started directly after dialing or directly after the START button has been pressed for models with
a START button, the other party should be called manually, if possible. Another possibility is entering two pauses at the end of
the auto dial number on the transmission side. Then the count start time can be delayed for 2 pauses (about 10 sec.).
Cause 2:
Erroneous detection because of an echo or an echo canceler.
(Echo/Echo Canceler)
The signal from FAX1 reaches FAX2 via stations 1 and 2, but the reflection signal at station 2 also returns via station 1 (echo).
As the distance between station 1 and station 2 is far, the echo returns to FAX 1 at a max of 600 msec after transmission. There
is a possibility that this signal is detected erroneously as the signal from FAX2. For a normal call, there is also a possibility that
the echo of their own voice will make the call difficult to understand. For this reason, each station (station 1 and station 2)
attaches echo cancelers (S1 and S2) for international lines or long distance lines. For the echo canceler, the level of the
transmission signal from FAX 1 is compared with the level of the reception signal from FAX2. When the transmission signal is
larger, S1 is closed while S2 is opened when it is smaller. In other words, for transmission from FAX1, S1 is closed and S2 is
open, so that the echo does not return to FAX1.
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KX-FP342BX
Summary of Contents for KX-FP342BX
Page 21: ...4 1 2 COMPONENT LOCATIONS 21 KX FP342BX ...
Page 33: ...5 2 2 HOW TO REMOVE THE OPERATION PANEL BLOCK 33 KX FP342BX ...
Page 34: ...5 2 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 34 KX FP342BX ...
Page 35: ...5 2 4 HOW TO REMOVE THE IMAGE SENSOR CIS 35 KX FP342BX ...
Page 36: ...5 2 5 HOW TO REMOVE THE THERMAL HEAD 36 KX FP342BX ...
Page 37: ...5 2 6 HOW TO REMOVE THE PLATEN ROLLER AND BACK COVER 37 KX FP342BX ...
Page 38: ...5 2 7 HOW TO REMOVE THE PICKUP ROLLER 38 KX FP342BX ...
Page 39: ...5 2 8 HOW TO REMOVE THE CASSETTE LEVER 39 KX FP342BX ...
Page 40: ...5 2 9 HOW TO REMOVE THE BOTTOM FRAME 40 KX FP342BX ...
Page 41: ...5 2 10 HOW TO REMOVE THE DIGITAL ANALOG POWER SUPPLY SENSOR BOARDS AND AC INLET 41 KX FP342BX ...
Page 42: ...5 2 11 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER 42 KX FP342BX ...
Page 43: ...5 2 12 HOW TO REMOVE THE GEARS OF MOTOR BLOCK 43 KX FP342BX ...
Page 44: ...5 3 INSTALLATION POSITION OF THE LEAD WIRES 44 KX FP342BX ...
Page 57: ...6 5 2 SREVICE MODE SETTINGS Note The above values are the default values 57 KX FP342BX ...
Page 71: ...71 KX FP342BX ...
Page 85: ...85 KX FP342BX ...
Page 86: ...CROSS REFERENCE TEST FUNCTIONS P 50 86 KX FP342BX ...
Page 87: ...CROSS REFERENCE TEST FUNCTIONS P 50 87 KX FP342BX ...
Page 88: ...CROSS REFERENCE TEST FUNCTIONS P 50 88 KX FP342BX ...
Page 89: ...CROSS REFERENCE TEST FUNCTIONS P 50 89 KX FP342BX ...
Page 90: ...90 KX FP342BX ...
Page 91: ...91 KX FP342BX ...
Page 92: ...CROSS REFERENCE TEST FUNCTIONS P 50 92 KX FP342BX ...
Page 96: ...96 KX FP342BX ...
Page 100: ...I O and Pin No Diagram 100 KX FP342BX ...
Page 104: ...6 6 7 3 NG EXAMPLE 104 KX FP342BX ...
Page 109: ...6 6 9 2 TROUBLESHOOTING FLOW CHART 109 KX FP342BX ...
Page 115: ...6 6 13 THERMAL HEAD SECTION Refer to THERMAL HEAD P 129 115 KX FP342BX ...
Page 116: ...7 CIRCUIT OPERATIONS 7 1 CONNECTION DIAGRAM 116 KX FP342BX ...
Page 118: ...7 2 1 GENERAL BLOCK DIAGRAM 118 KX FP342BX ...
Page 120: ...7 3 2 MEMORY MAP 120 KX FP342BX ...
Page 128: ...7 4 2 BLOCK DIAGRAM 128 KX FP342BX ...
Page 131: ...TIMING CHART i Print Duty 50 or less ii Print Duty more than 50 131 KX FP342BX ...
Page 150: ...150 KX FP342BX ...
Page 159: ...8 REFERENCE MATERIAL DATA 8 1 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 159 KX FP342BX ...
Page 162: ...8 3 TEST CHART 8 3 1 ITU T No 1 TEST CHART 162 KX FP342BX ...
Page 163: ...8 3 2 ITU T No 2 TEST CHART 163 KX FP342BX ...
Page 164: ...9 FIXTURES AND TOOLS 164 KX FP342BX ...
Page 165: ...10 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 10 1 GENERAL SECTION 165 KX FP342BX ...
Page 166: ...10 2 OPERATION PANEL SECTION 166 KX FP342BX ...
Page 167: ...10 3 BACK COVER SECTION 167 KX FP342BX ...
Page 168: ...168 KX FP342BX ...
Page 169: ...10 4 UPPER CABINET SECTION 169 KX FP342BX ...
Page 170: ...10 5 LOWER CABINET P C BOARD SECTION CROSS REFERENCE MOTOR SECTION P 171 170 KX FP342BX ...
Page 171: ...10 6 MOTOR SECTION 10 7 ACTUAL SIZE OF SCREWS 171 KX FP342BX ...
Page 172: ...11 ACCESSORIES AND PACKING MATERIALS 172 KX FP342BX ...
Page 180: ...8 REFERENCE MATERIAL DATA 8 1 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 159 KX FP342BX ...
Page 183: ...8 3 TEST CHART 8 3 1 ITU T No 1 TEST CHART 162 KX FP342BX ...
Page 184: ...8 3 2 ITU T No 2 TEST CHART 163 KX FP342BX ...
Page 185: ...9 FIXTURES AND TOOLS 164 KX FP342BX ...
Page 186: ...10 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 10 1 GENERAL SECTION 165 KX FP342BX ...
Page 187: ...10 2 OPERATION PANEL SECTION 166 KX FP342BX ...
Page 188: ...10 3 BACK COVER SECTION 167 KX FP342BX ...
Page 189: ...168 KX FP342BX ...
Page 190: ...10 4 UPPER CABINET SECTION 169 KX FP342BX ...
Page 191: ...10 5 LOWER CABINET P C BOARD SECTION CROSS REFERENCE MOTOR SECTION P 171 170 KX FP342BX ...
Page 192: ...10 6 MOTOR SECTION 10 7 ACTUAL SIZE OF SCREWS 171 KX FP342BX ...
Page 193: ...11 ACCESSORIES AND PACKING MATERIALS 172 KX FP342BX ...