[Surge Absorber Circuit]
This circuit is for absorbing surge voltage generated by the transformer.
[Control Circuit and Detecting Circuit]
The control circuit amplifies the output with increased voltage detected in the error detecting circuit. Then it drives the main
transistor.
In this power supply, the duty ratio is defined by changing the ON period of the main transistor.
This is shown as follows.
When the output voltage of the 24V circuit increases, the current of the photo coupler PC101 increases, the pulse width of the
output control IC becomes narrower and the ON period of Q101 becomes shorter.
[Over Current Limiter (O.C.L)]
The highest drain current (Q101) is limited by a limiter circuit (IC101) of 24V. The 24V output is limited by this circuit.
[Over Voltage Circuit]
If the 24V output increases because the error detecting circuit or control circuit is broken, IC101 will recognize this signal and
output becomes 0V.
Dummy load method (to quickly check the power supply output)
Refer to POWER SUPPLY BOARD SECTION (P.144).
196
KX-FL612CX / KX-FL612CX-S
Summary of Contents for KX-FL612CX
Page 12: ...3 INSTALLATION 3 1 LOCATION OF CONTROLS 3 1 1 OVERVIEW 12 KX FL612CX KX FL612CX S ...
Page 13: ...3 1 2 CONTROL PANEL 13 KX FL612CX KX FL612CX S ...
Page 40: ...5 DISASSEMBLY INSTRUCTIONS 40 KX FL612CX KX FL612CX S ...
Page 43: ...5 3 HOW TO REMOVE THE OPERATION PANEL ASS Y 43 KX FL612CX KX FL612CX S ...
Page 44: ...5 4 HOW TO REMOVE THE PICK UP UNIT 44 KX FL612CX KX FL612CX S ...
Page 45: ...5 5 HOW TO REMOVE THE PICK UP ROLLER 45 KX FL612CX KX FL612CX S ...
Page 46: ...5 6 HOW TO REMOVE THE OPERATION BOARD 46 KX FL612CX KX FL612CX S ...
Page 48: ...5 9 HOW TO REMOVE THE TRANSFER ROLLER 48 KX FL612CX KX FL612CX S ...
Page 49: ...5 10 HOW TO REMOVE THE SEPARATION ROLLER 49 KX FL612CX KX FL612CX S ...
Page 54: ...5 19 HOW TO REMOVE THE MAIN MOTOR 54 KX FL612CX KX FL612CX S ...
Page 55: ...5 20 HOW TO REMOVE THE FUSER UNIT 55 KX FL612CX KX FL612CX S ...
Page 56: ...5 21 HOW TO REMOVE THE CIS 56 KX FL612CX KX FL612CX S ...
Page 58: ...5 23 INSTALLATION POSITION OF THE LEAD 58 KX FL612CX KX FL612CX S ...
Page 93: ...6 5 7 6 LIGHT PRINT CROSS REFERENCE HIGH VOLTAGE SECTION P 140 93 KX FL612CX KX FL612CX S ...
Page 95: ...6 5 7 8 BLANK PRINT 6 5 7 9 BLACK OR WHITE POINT 95 KX FL612CX KX FL612CX S ...
Page 97: ...6 5 8 3 SKEW 97 KX FL612CX KX FL612CX S ...
Page 103: ...CROSS REFERENCE MOTOR SECTION P 135 103 KX FL612CX KX FL612CX S ...
Page 104: ...6 5 9 2 SKEW ADF 104 KX FL612CX KX FL612CX S ...
Page 106: ...6 5 9 5 THE RECEIVED OR COPIED DATA IS EXPANDED 106 KX FL612CX KX FL612CX S ...
Page 107: ...6 5 9 6 BLACK OR WHITE VERTICAL LINE IS COPIED 107 KX FL612CX KX FL612CX S ...
Page 117: ...117 KX FL612CX KX FL612CX S ...
Page 120: ...CROSS REFERENCE TEST FUNCTIONS P 64 120 KX FL612CX KX FL612CX S ...
Page 121: ...CROSS REFERENCE TEST FUNCTIONS P 64 121 KX FL612CX KX FL612CX S ...
Page 122: ...CROSS REFERENCE TEST FUNCTIONS P 64 122 KX FL612CX KX FL612CX S ...
Page 123: ...CROSS REFERENCE TEST FUNCTIONS P 64 123 KX FL612CX KX FL612CX S ...
Page 124: ...124 KX FL612CX KX FL612CX S ...
Page 125: ...125 KX FL612CX KX FL612CX S ...
Page 126: ...CROSS REFERENCE TEST FUNCTIONS P 64 126 KX FL612CX KX FL612CX S ...
Page 135: ...6 5 13 6 MOTOR SECTION 6 5 13 6 1 ENGINE MOTOR 135 KX FL612CX KX FL612CX S ...
Page 136: ...6 5 13 6 2 ADF MOTOR 136 KX FL612CX KX FL612CX S ...
Page 140: ...6 5 16 HIGH VOLTAGE SECTION 140 KX FL612CX KX FL612CX S ...
Page 141: ...141 KX FL612CX KX FL612CX S ...
Page 142: ...142 KX FL612CX KX FL612CX S ...
Page 145: ...6 5 17 2 TROUBLESHOOTING FLOW CHART 145 KX FL612CX KX FL612CX S ...
Page 147: ...7 CIRCUIT OPERATIONS 7 1 CONNECTION DIAGRAM 147 KX FL612CX KX FL612CX S ...
Page 149: ...149 KX FL612CX KX FL612CX S ...
Page 167: ...7 7 1 2 ENGINE MOTOR DRIVE CIRCUIT 167 KX FL612CX KX FL612CX S ...
Page 173: ...7 10 LSU Laser Scanning Unit SECTION 173 KX FL612CX KX FL612CX S ...
Page 174: ...174 KX FL612CX KX FL612CX S ...
Page 181: ...181 KX FL612CX KX FL612CX S ...
Page 202: ...8 1 8 TIMING CHART When Printing Two Sheets of Paper BASIC 202 KX FL612CX KX FL612CX S ...
Page 203: ...8 1 9 Timing Chart Initializing Long 203 KX FL612CX KX FL612CX S ...
Page 205: ...8 2 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 205 KX FL612CX KX FL612CX S ...
Page 209: ...8 4 1 NG EXAMPLE 209 KX FL612CX KX FL612CX S ...
Page 215: ...215 KX FL612CX KX FL612CX S ...
Page 216: ...8 6 TEST CHART 8 6 1 ORIGINAL TEST CHART 216 KX FL612CX KX FL612CX S ...
Page 217: ...8 6 2 ITU T No 1 TEST CHART 217 KX FL612CX KX FL612CX S ...
Page 218: ...8 6 3 ITU T No 2 TEST CHART 218 KX FL612CX KX FL612CX S ...
Page 219: ...9 FIXTURES AND TOOLS 219 KX FL612CX KX FL612CX S ...
Page 221: ...10 2 OPERATION COVER SECTION 1 221 KX FL612CX KX FL612CX S ...
Page 222: ...10 3 OPERATION COVER SECTION 2 222 KX FL612CX KX FL612CX S ...
Page 223: ...10 4 OPERATION COVER SECTION 3 223 KX FL612CX KX FL612CX S ...
Page 224: ...10 5 PICK UP SECTION 224 KX FL612CX KX FL612CX S ...
Page 225: ...10 6 FUSER SECTION 225 KX FL612CX KX FL612CX S ...
Page 226: ...10 7 UPPER MAIN CABINET SECTION 226 KX FL612CX KX FL612CX S ...
Page 227: ...10 8 LOWER MAIN CABINET SECTION 1 227 KX FL612CX KX FL612CX S ...
Page 228: ...10 9 LOWER MAIN CABINET SECTION 2 228 KX FL612CX KX FL612CX S ...
Page 229: ...10 10 LOWER CABINET SECTION 3 229 KX FL612CX KX FL612CX S ...
Page 230: ...10 11 ACTUAL SIZE OF SCREWS AND WASHER 230 KX FL612CX KX FL612CX S ...
Page 231: ...11 ACCESSORIES AND PACKING MATERIALS 231 KX FL612CX KX FL612CX S ...
Page 243: ...Memo 243 KX FL612CX KX FL612CX S ...
Page 266: ...266 KX FL612CX KX FL612CX S HI Q KXFL612CX KXFL612CXS ...