21
KX-FP701CX/KX-FP702CX
6.3.8.
Supervision Circuit for the Thermal 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 IC1 becomes a low level. Then when it becomes a high level, it triggers point A In point C, according to the voltage out-
put 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
IC1. 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-FP70CX
Страница 10: ...10 KX FP701CX KX FP702CX 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 12: ...12 KX FP701CX KX FP702CX 6 2 1 General Block Diagram ...
Страница 14: ...14 KX FP701CX KX FP702CX 6 3 2 Memory Map ...
Страница 23: ...23 KX FP701CX KX FP702CX 6 4 2 Block Diagram ...
Страница 25: ...25 KX FP701CX KX FP702CX ...
Страница 40: ...40 KX FP701CX KX FP702CX b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format ...
Страница 69: ...69 KX FP701CX KX FP702CX 11 2 1 2 KX FP702CX Note The above values are the default values ...
Страница 77: ...77 KX FP701CX KX FP702CX Countermeasure ...
Страница 78: ...78 KX FP701CX KX FP702CX REFERENCE 10Test Mode P 60 ...
Страница 79: ...79 KX FP701CX KX FP702CX REFERENCE 10Test Mode P 60 ...
Страница 80: ...80 KX FP701CX KX FP702CX REFERENCE 10Test Mode P 60 ...
Страница 81: ...81 KX FP701CX KX FP702CX REFERENCE 10Test Mode P 60 ...
Страница 82: ...82 KX FP701CX KX FP702CX ...
Страница 83: ...83 KX FP701CX KX FP702CX ...
Страница 84: ...84 KX FP701CX KX FP702CX REFERENCE 10Test Mode P 60 ...
Страница 88: ...88 KX FP701CX KX FP702CX ...
Страница 113: ...113 KX FP701CX KX FP702CX ...
Страница 120: ...120 KX FP701CX KX FP702CX I O and Pin No Diagram ...
Страница 122: ...122 KX FP701CX KX FP702CX Other NG example while the power is ON and the LCD displays the following ...
Страница 123: ...123 KX FP701CX KX FP702CX 12 5 5 2 NG Example ...
Страница 127: ...127 KX FP701CX KX FP702CX 12 5 7 2 Troubleshooting Flow Chart ...
Страница 131: ...131 KX FP701CX KX FP702CX 12 5 9 5 Check the HOOK Switch SW101 ...
Страница 133: ...133 KX FP701CX KX FP702CX 12 5 11 Thermal Head Section Note Refer to 6 4 3 Thermal Head P 24 ...
Страница 134: ...134 KX FP701CX KX FP702CX 13 Service Fixture Tools ...
Страница 137: ...137 KX FP701CX KX FP702CX 14 2 DISASSEMBLY PROCEDURE 14 2 1 HOW TO REMOVE THE PAPER TRAY AND RECORDING PAPER SUPPORT ...
Страница 138: ...138 KX FP701CX KX FP702CX 14 2 2 HOW TO REMOVE THE OPERATION PANEL BLOCK ...
Страница 139: ...139 KX FP701CX KX FP702CX 14 2 3 HOW TO REMOVE THE OPERATION BOARD AND LCD ...
Страница 140: ...140 KX FP701CX KX FP702CX 14 2 4 HOW TO REMOVE THE SEPARATION HOLDER AND EXIT ROLLER ...
Страница 141: ...141 KX FP701CX KX FP702CX 14 2 5 HOW TO REMOVE THE IMAGE SENSOR CIS ...
Страница 142: ...142 KX FP701CX KX FP702CX 14 2 6 HOW TO REMOVE THE THERMAL HEAD ...
Страница 143: ...143 KX FP701CX KX FP702CX 14 2 7 HOW TO REMOVE THE PLATEN ROLLER AND BACK COVER ...
Страница 144: ...144 KX FP701CX KX FP702CX 14 2 8 HOW TO REMOVE THE PICKUP ROLLER ...
Страница 145: ...145 KX FP701CX KX FP702CX 14 2 9 HOW TO REMOVE THE CASSETTE LEVER ...
Страница 146: ...146 KX FP701CX KX FP702CX 14 2 10 HOW TO REMOVE THE BOTTOM FRAME ...
Страница 147: ...147 KX FP701CX KX FP702CX 14 2 11 HOW TO REMOVE THE DIGITAL ANALOG SENSOR BOARDS ...
Страница 148: ...148 KX FP701CX KX FP702CX 14 2 12 HOW TO REMOVE THE POWER SUPPLY BOARD AND AC CORD ...
Страница 149: ...149 KX FP701CX KX FP702CX 14 2 13 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER ...
Страница 150: ...150 KX FP701CX KX FP702CX 14 2 14 HOW TO REMOVE THE GEARS OF MOTOR BLOCK ...
Страница 151: ...151 KX FP701CX KX FP702CX 14 2 15 INSTALLATION POSITION OF THE LEAD WIRES ...
Страница 165: ...165 KX FP701CX KX FP702CX 16 1 4 Power Supply Board 16 1 5 Interface Board ...
Страница 168: ...168 KX FP701CX KX FP702CX 16 3 Test Chart 16 3 1 ITU T No 1 Test chart ...
Страница 169: ...169 KX FP701CX KX FP702CX 16 3 2 ITU T No 2 Test Chart ...
Страница 170: ...170 KX FP701CX KX FP702CX 16 3 3 Test Chart ...
Страница 171: ...171 KX FP701CX KX FP702CX MEMO ...
Страница 182: ...182 KX FP701CX KX FP702CX MEMO ...
Страница 190: ...190 KX FP701CX KX FP702CX MEMO ...
Страница 196: ...196 KX FP701CX KX FP702CX 20 1 2 Operation Panel Section ...
Страница 197: ...197 KX FP701CX KX FP702CX 20 1 3 Back Cover Section ...
Страница 198: ...198 KX FP701CX KX FP702CX ...
Страница 199: ...199 KX FP701CX KX FP702CX 20 1 4 Upper Cabinet Section ...
Страница 200: ...200 KX FP701CX KX FP702CX 20 1 5 Lower Cabinet Section ...
Страница 201: ...201 KX FP701CX KX FP702CX 20 1 6 Gear Block Section ...
Страница 202: ...202 KX FP701CX KX FP702CX 20 1 7 Screws ...
Страница 203: ...203 KX FP701CX KX FP702CX 20 1 8 Accessories and Packing Materials ...