The following is an overview of how the power supply unit is controlled.
The control method of this power supply unit is pulse width modulation.
When Q
1
is ON, the energy is charged in the transfer primary coil according to E
1
. When Q
1
is OFF, the energy is output from the
secondary transfer as follows.
L
→
D
1
→
Load
→
L
Then the power is supplied to the Load. When Q
1
is ON, power is not output from the secondary side. The output voltage is fed
back in the control IC according to the error amp rectifier. Then depending on how T
ON
is controlled, stabilization occurs. Also, when
the current load becomes too large, in order to decrease the voltage output, the increase in
is controlled and the output voltage
is stabilized.
Therefore, basically the timing: Ton/Toff of Q1 controls the output voltage.
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KX-FP101
Summary of Contents for KX-FP105BX
Page 36: ...1 11 CCITT No 1 Test Chart Actual size 8 KX FP101 ...
Page 38: ...1 12 2 CONTROL PANEL 10 KX FP101 ...
Page 58: ...2 3 3 TROUBLESHOOTING ITEMS TABLE 30 KX FP101 ...
Page 59: ...2 3 3 1 Simple Check List 31 KX FP101 ...
Page 61: ...2 Document JAM 33 KX FP101 ...
Page 65: ...6 Paper JAM 7 Multiple feed and skew 37 KX FP101 ...
Page 68: ...Fig C 12 A blank page is received 40 KX FP101 ...
Page 72: ...2 3 3 3 1 Defective facsimile section 1 Transmit problem 44 KX FP101 ...
Page 80: ...52 KX FP101 ...
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Page 87: ...59 KX FP101 ...
Page 92: ...2 3 3 4 1 Digital Block Diagram 64 KX FP101 ...
Page 95: ...I O and Pin No Diagram 67 KX FP101 ...
Page 97: ...69 KX FP101 ...
Page 98: ...NG Example 70 KX FP101 ...
Page 99: ...2 3 3 4 2 Check the Status of the Digital Board 71 KX FP101 ...
Page 101: ...Note Inside the digital board 73 KX FP101 ...
Page 105: ...2 Troubleshooting Flow Chart 77 KX FP101 ...
Page 107: ...2 3 3 7 Operation Panel Section 1 No key operation 2 No LCD indication 79 KX FP101 ...
Page 110: ...2 3 3 9 CIS Contact Image Sensor Section Refer to 6 4 4 SCANNING BLOCK 82 KX FP101 ...
Page 111: ...83 KX FP101 ...
Page 112: ...2 3 3 10 Thermal Head Section Refer to 6 4 3 THERMAL HEAD 84 KX FP101 ...
Page 125: ...2 4 7 3 PRINTOUT EXAMPLE 97 KX FP101 ...
Page 126: ...98 KX FP101 ...
Page 129: ...2 5 3 PRINT TEST PATTERN 1 Platen roller Reference pattern 101 KX FP101 ...
Page 130: ...2 Left margin Top margin Reference pattern 102 KX FP101 ...
Page 131: ...3 Thermal head 1 dot Reference pattern 103 KX FP101 ...
Page 154: ...6 3 2 MEMORY MAP 126 KX FP101 ...
Page 166: ...138 KX FP101 ...
Page 176: ...6 4 6 3 2 Transmitting documents 6 4 6 3 3 Receiving FAX 148 KX FP101 ...
Page 177: ...6 4 6 3 4 Copying 149 KX FP101 ...
Page 212: ...12 1 MEMO KX FP101 184 ...
Page 214: ...13 1 MEMO KX FP101 186 ...
Page 216: ...14 1 MEMO KX FP101 188 ...
Page 218: ...15 1 MEMO KX FP101 190 ...
Page 220: ...16 1 MEMO KX FP101 192 ...
Page 221: ...17 TERMINAL GUIDE OF THE IC S TRANSISTORS AND DIODES 193 KX FP101 ...
Page 222: ...18 FIXTURES AND TOOLS 194 KX FP101 ...
Page 223: ...19 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 19 1 OPERATION PANEL SECTION 195 KX FP101 ...
Page 224: ...19 2 UPPER CABINET SECTION 196 KX FP101 ...
Page 225: ...19 2 1 PICK UP BASE SECTION 197 KX FP101 ...
Page 226: ...19 3 LOWER P C B SECTION 198 KX FP101 ...
Page 227: ...19 4 MOTOR SECTION 199 KX FP101 ...
Page 228: ...19 5 ACTUAL SIZE OF SCREWS AND WASHER 200 KX FP101 ...
Page 229: ...20 ACCESSORIES AND PACKING MATERIALS 201 KX FP101 ...