Power supply
Overview
Low Voltage Power Supply PCB converts DC power supply from AC power supply to supply voltage to PCBs.
Description
The following shows a block diagram of the power supply.
• Low Voltage Power Supply PCB: Controls the temperature of the Fixing Heater of the Fixing Assembly and generates the
DC power supply required by the host machine.
• DC Controller: Distributes voltage provided by the Low Voltage Power Supply to respective load.
When the Low Voltage Power Supply PCB is connected to the inlet, AC power supply to the Low Voltage Power Supply PCB
starts.
AC power supply is used to drive the Fixing Heater. +24 V generation circuit in the power supply generates DC power voltage
+24V.
+3.3 V is generated from DC v24 V, which is generated in the power supply, then supplied to the DC Controller and the
Main Controller.
DC Controller gen5 V from DC v24 V, and then supplies it to the High Voltage PCB.
Voltage generated by the Fixing Power Supply PCB and DC Controller is supplied to each load.
+24F
FET
FET
FET
FET
+3.3F
LVM
FREQSNS
Door SW
circuit
+3.3V
+3.3U
+24U
+24V
+24V
24F ON
+24F
+5R
+24P
3.3F ON
AC input
Low voltage power supply
Fuse
FU101
+24V
generation
circuit
+3.3V
generation
circuit
Protection
circuit
Motor PCB
DC controller
High voltage power supply
Fixing unit
+5V
generation
circuit
Main controller PCB
Rectifying
circuit
Engine controller PCB
Fuse
FU202
Frequency
detection circuit
(
220-240V only
)
2. Technology
36
Содержание imageCLASS MF264dw
Страница 13: ...Product Overview 1 Product Lineup 6 Features 8 Specifications 9 Parts Name 14 ...
Страница 14: ...Product Lineup Host machine MF269dw MF267dw MF266dn MF264dw MF263dn MF261d 1 Product Overview 6 ...
Страница 67: ...Consumable Parts Consumable parts are not required in this machine 3 Periodical Service 59 ...
Страница 68: ...Periodical Service No periodic services are required to this machine 3 Periodical Service 60 ...
Страница 77: ... SADF Unit Reader Unit 1 2 No Name 1 SADF Unit 2 Reader Unit 4 Parts Replacement and Cleaning 69 ...
Страница 78: ... Copyboard Cover Reader Unit 1 2 No Name 1 Copyboard Cover 2 Reader Unit 4 Parts Replacement and Cleaning 70 ...
Страница 89: ...3 80 mm 80 mm 4 Parts Replacement and Cleaning 81 ...
Страница 92: ... If the Fax is not installed 3x 2x 1x 2 60 mm 3 4 Parts Replacement and Cleaning 84 ...
Страница 96: ...3 4 Parts Replacement and Cleaning 88 ...
Страница 97: ...4 5 4 Parts Replacement and Cleaning 89 ...
Страница 105: ...2 3 1x 4 Parts Replacement and Cleaning 97 ...
Страница 106: ...4 CAUTION When placing the units do NOT damage the Flat Cable and the Harness 4 Parts Replacement and Cleaning 98 ...
Страница 108: ... Procedure CAUTION Do not damage the White Guide Plate 1 2 4 Parts Replacement and Cleaning 100 ...
Страница 110: ...5 6 4x 1x 1x 7 4 Parts Replacement and Cleaning 102 ...
Страница 115: ...3 4 5 4 Parts Replacement and Cleaning 107 ...
Страница 116: ...6 4 Parts Replacement and Cleaning 108 ...
Страница 122: ...2 3 4 4 Parts Replacement and Cleaning 114 ...
Страница 124: ...1 2 2x 3 4 4 Parts Replacement and Cleaning 116 ...
Страница 127: ...2 3 4 2x 1x 5 4 Parts Replacement and Cleaning 119 ...
Страница 129: ...3 4 2x 1x 5 6 4 Parts Replacement and Cleaning 121 ...
Страница 132: ...5 2x 4 Parts Replacement and Cleaning 124 ...
Страница 138: ...2 1x 3 1x 4 4 Parts Replacement and Cleaning 130 ...
Страница 140: ... Procedure 1 2 4 Parts Replacement and Cleaning 132 ...
Страница 144: ... Procedure 1 2 3 2x 4 Parts Replacement and Cleaning 136 ...
Страница 146: ...3 4 4 Parts Replacement and Cleaning 138 ...
Страница 147: ...5 4 Parts Replacement and Cleaning 139 ...
Страница 153: ...1 2 3 4 4 Parts Replacement and Cleaning 145 ...
Страница 155: ...1 2 2x 3 4 4 Parts Replacement and Cleaning 147 ...
Страница 158: ...2 3 4 2x 1x 5 4 Parts Replacement and Cleaning 150 ...
Страница 160: ...3 4 2x 1x 5 6 4 Parts Replacement and Cleaning 152 ...
Страница 163: ...5 2x 4 Parts Replacement and Cleaning 155 ...
Страница 166: ...2 2x 1x 1x 3 1x 1x 4 Parts Replacement and Cleaning 158 ...
Страница 170: ...2 2x 3 4 2x 4 Parts Replacement and Cleaning 162 ...
Страница 173: ...2 3 4 2x 1x 5 4 Parts Replacement and Cleaning 165 ...
Страница 175: ...3 4 2x 1x 5 6 4 Parts Replacement and Cleaning 167 ...
Страница 178: ...5 2x 4 Parts Replacement and Cleaning 170 ...
Страница 180: ...Controller System Removing the Control Panel Unit Procedure 1 2 4x 3 4 Parts Replacement and Cleaning 172 ...
Страница 183: ...2 4x 4 Parts Replacement and Cleaning 175 ...
Страница 186: ...2 3 If the Fax is installed 4x If the Fax is not installed 4x 4 Parts Replacement and Cleaning 178 ...
Страница 188: ... If the Fax is not installed 6 2x 1x 7 3x 8 2x 1x 4 Parts Replacement and Cleaning 180 ...
Страница 191: ...4 1x 5 1x 6 3x 4 Parts Replacement and Cleaning 183 ...
Страница 199: ... Procedure 1 3x 2x 4 Parts Replacement and Cleaning 191 ...
Страница 201: ... If the Fax is not installed 2 4x 3 4 Parts Replacement and Cleaning 193 ...
Страница 208: ...4 4 Parts Replacement and Cleaning 200 ...
Страница 211: ...3 2x 4 1x 4 Parts Replacement and Cleaning 203 ...
Страница 213: ...2 3 4x 4 4 Parts Replacement and Cleaning 205 ...
Страница 217: ...3 1x 1x 4 5 2x 6 4 Parts Replacement and Cleaning 209 ...
Страница 218: ...7 8 9 4 Parts Replacement and Cleaning 210 ...
Страница 223: ...4 4 Parts Replacement and Cleaning 215 ...
Страница 228: ...Adjustment 5 Adjustment at Parts Replacement 221 ...
Страница 230: ...Troubleshooting 6 Test Print 223 Troubleshooting Items 226 Debug Log 228 Version Upgrade 231 ...
Страница 242: ...Error Jam Alarm 7 Overview 235 Error Code 238 Jam Code 241 Alarm Code 243 ...
Страница 251: ...Alarm Code This machine does not have any Alarm Code 7 Error Jam Alarm 243 ...
Страница 287: ...APPENDICES Service Tools 280 General Circuit Diagram 281 Backup Data 283 ...