21
KX-FP207FX-S/FP218FX-S
6.3.8.
Supervision Circuit for the Terminal Head Temperature
1.
Function
The thermistor changes the resistor according to the temperature and uses the thermistor's characteristics. The output of pin
139 of IC501 becomes a low level. Then when it becomes a high level, it triggers point A In point C, according to the voltage
output time, the thermal head's temperature is detected.
After the thermal head temperature is converted to voltage in B, it is then changed to digital data in the A/D converter inside
IC501. The CPU decides the strobe width of the thermal head according to this value. Therefore, this circuit can keep the ther-
mal head at an even temperature in order to stabilize the printing density and prevent the head from being overheated.
REFERENCE:
Содержание KX-FP207FX-S
Страница 10: ...10 KX FP207FX S FP218FX S 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 12: ...12 KX FP207FX S FP218FX S 6 2 1 General Block Diagram ...
Страница 14: ...14 KX FP207FX S FP218FX S 6 3 2 Memory Map ...
Страница 23: ...23 KX FP207FX S FP218FX S 6 4 2 Block Diagram ...
Страница 25: ...25 KX FP207FX S FP218FX S ...
Страница 44: ...44 KX FP207FX S FP218FX S 2 Signal path Refer to Check Sheet for Signal Route P 123 ...
Страница 67: ...67 KX FP207FX S FP218FX S 11 2 The Example of the Printed List 11 2 1 User Mode 11 2 1 1 KX FP207FX S ...
Страница 68: ...68 KX FP207FX S FP218FX S 11 2 1 2 KX FP218FX S Note The above values are the default values ...
Страница 76: ...76 KX FP207FX S FP218FX S Countermeasure ...
Страница 77: ...77 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
Страница 78: ...78 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
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Страница 83: ...83 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
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Страница 119: ...119 KX FP207FX S FP218FX S I O and Pin No Diagram ...
Страница 121: ...121 KX FP207FX S FP218FX S Other NG example while the power is ON and the LCD displays the following ...
Страница 122: ...122 KX FP207FX S FP218FX S 12 5 5 2 NG Example ...
Страница 124: ...124 KX FP207FX S FP218FX S ...
Страница 127: ...127 KX FP207FX S FP218FX S Note Check to the SP Phone Rx Tx signal routes Refer to Check Sheet for Signal Route P 123 ...
Страница 129: ...129 KX FP207FX S FP218FX S 12 5 8 2 Troubleshooting Flow Chart ...
Страница 135: ...135 KX FP207FX S FP218FX S 12 5 12 Thermal Head Section Note Refer to Thermal Head P 24 ...
Страница 136: ...136 KX FP207FX S FP218FX S 13 Service Fixture Tools ...
Страница 140: ...140 KX FP207FX S FP218FX S 14 3 Disassembly Procedure 14 3 1 How to Remove the Image Sensor CIS ...
Страница 141: ...141 KX FP207FX S FP218FX S 14 3 2 How to Remove the Thermal Head ...
Страница 142: ...142 KX FP207FX S FP218FX S ...
Страница 143: ...143 KX FP207FX S FP218FX S 14 3 3 How to Remove the Bottom Frame ...
Страница 144: ...144 KX FP207FX S FP218FX S 14 3 4 How to Remove the P C Boards and Speaker ...
Страница 145: ...145 KX FP207FX S FP218FX S 14 3 5 How to Remove the Power Supply Board and AC cord ...
Страница 146: ...146 KX FP207FX S FP218FX S 14 3 6 How to Remove the Gear Block and Separation Roller ...
Страница 147: ...147 KX FP207FX S FP218FX S 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Страница 148: ...148 KX FP207FX S FP218FX S ...
Страница 149: ...149 KX FP207FX S FP218FX S 14 3 8 How to Remove the Handset Cradle and Hook Switch Board ...
Страница 150: ...150 KX FP207FX S FP218FX S 14 3 9 How to Remove the Back Cover ...
Страница 151: ...151 KX FP207FX S FP218FX S 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Страница 152: ...152 KX FP207FX S FP218FX S ...
Страница 153: ...153 KX FP207FX S FP218FX S 14 3 11 How to Remove the Pickup Roller ...
Страница 154: ...154 KX FP207FX S FP218FX S 14 3 12 How to Remove the Operation Panel ...
Страница 155: ...155 KX FP207FX S FP218FX S 14 3 13 How to Remove the Operation Board and LCD 14 3 13 1 KX FP207FX ...
Страница 156: ...156 KX FP207FX S FP218FX S 14 3 13 2 KX FP218FX ...
Страница 157: ...157 KX FP207FX S FP218FX S 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Страница 158: ...158 KX FP207FX S FP218FX S 14 3 15 Installation Position of the Lead Wires 14 3 15 1 Lower Section ...
Страница 159: ...159 KX FP207FX S FP218FX S ...
Страница 160: ...160 KX FP207FX S FP218FX S ...
Страница 161: ...161 KX FP207FX S FP218FX S 14 3 15 2 Operation Panel Section KX FP207 ...
Страница 162: ...162 KX FP207FX S FP218FX S 14 3 15 3 Operation Panel and Mic Board Section KX FP218 ...
Страница 177: ...177 KX FP207FX S FP218FX S 16 1 4 Power Supply Board 16 1 5 Interface Board ...
Страница 180: ...180 KX FP207FX S FP218FX S 16 3 Test Chart 16 3 1 ITU T No 1 Test chart ...
Страница 181: ...181 KX FP207FX S FP218FX S 16 3 2 ITU T No 2 Test Chart ...
Страница 182: ...182 KX FP207FX S FP218FX S 16 3 3 Test Chart ...
Страница 201: ...201 KX FP207FX S FP218FX S MEMO ...
Страница 212: ...212 KX FP207FX S FP218FX S 20 1 2 Operation Panel Section ...
Страница 213: ...213 KX FP207FX S FP218FX S 20 1 3 Upper Cabinet Section ...
Страница 214: ...214 KX FP207FX S FP218FX S 20 1 4 Back Cover Section ...
Страница 215: ...215 KX FP207FX S FP218FX S ...
Страница 216: ...216 KX FP207FX S FP218FX S 20 1 5 Lower Cabinet Section ...
Страница 217: ...217 KX FP207FX S FP218FX S 20 1 6 Gear Block Section ...
Страница 218: ...218 KX FP207FX S FP218FX S ...
Страница 219: ...219 KX FP207FX S FP218FX S 20 1 7 Screws ...
Страница 220: ...220 KX FP207FX S FP218FX S 20 1 8 Accessories and Packing Materials ...
Страница 232: ...232 KX FP207FX S FP218FX S Y F KXFP207FX S KXFP218FX S ...