Notes on the Main Power Switch (SW1)
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4. REPLACEMENT AND ADJUSTMENT
4.1 NOTES ON THE MAIN POWER SWITCH (SW1)
4.1.1 PUSH SWITCH
The main power button of this machine has been changed to a push-button switch from the
conventional rocker switch. The push switch has characteristics and specifications different
from the rocker switch. Care must be taken when replacing and adjusting parts.
Characteristics of the Push Switch (Main Power Switch (SW1))
The push switch in this machine uses DC (direct current). Therefore, if
the AC power cord is connected to an electrical outlet, power is supplied
to the controller board (PCB24), the operation unit and other modules
even when the main power is turned OFF. When replacing the controller
board (PCB24) and the operation unit in this state, not only these boards,
but other electrical components will be damaged.
So, when performing maintenance work such as replacing parts, in addition to turning OFF the
main power with the push switch, always unplug the AC power cord after the LED on the
operation panel is turned OFF and press the push switch to discharge any residual voltage, see
information below.
•
If you unplug the power cord before turning off the LED, some icons on the operation
panel will not appear at the next start-up. Restarting the machine again will solve this
issue.
When you disconnect the power cord from the AC wall outlet, there is still
residual charge inside the machine for a while. Therefore, if you remove
boards in this state, it can cause a blown fuse or memory failure.
•
How to remove the residual charge inside the machine
After you unplug the power cord from the AC wall outlet, in order to remove the residual
charge from inside the machine, press the main power switch (SW1). The charge
remaining in the machine is released, and it is possible to remove boards.
In order to remove the residual charge, push the main power switch
(SW1) after you disconnect the AC power cord. At that time, the power ON
flag inside the machine is set. Therefore, after you finish work on the
machine and reconnect the power cord to the AC, even if you do not press
Summary of Contents for D0C8
Page 1: ...D0CA D0C9 D0C8 D0CB SERVICE MANUAL Rev 08 26 2021...
Page 4: ......
Page 6: ......
Page 35: ...PRODUCT INFORMATION...
Page 36: ......
Page 44: ......
Page 45: ...INSTALLATION...
Page 46: ......
Page 222: ......
Page 223: ...PREVENTIVE MAINTENANCE...
Page 224: ......
Page 233: ...REPLACEMENT AND ADJUSTMENT...
Page 234: ......
Page 264: ...Special Tools D0CA D0C9 D0C8 D0CB 4 30 SM...
Page 276: ...Exterior Covers D0CA D0C9 D0C8 D0CB 4 42 SM 6 Remove the scanner inner cover A...
Page 442: ...Duplex D0CA D0C9 D0C8 D0CB 4 208 SM 3 Remove the right cover sensor SW2 A 1...
Page 452: ...Electrical Components D0CA D0C9 D0C8 D0CB 4 218 SM IM C300 series IM C400F...
Page 501: ...SYSTEM MAINTENANCE...
Page 502: ......
Page 578: ...Self Diagnostic Mode D0CA D0C9 D0C8 D0CB 6 4 SM...
Page 732: ...Troubleshooting for Other Problems D0CA D0C9 D0C8 D0CB 6 158 SM...
Page 742: ...Jam Detection D0CA D0C9 D0C8 D0CB 6 168 SM...
Page 746: ...Jam Detection D0CA D0C9 D0C8 D0CB 6 172 SM Sensor Layout...
Page 747: ...Jam Detection SM 6 173 D0CA D0C9 D0C8 D0CB Troubleshooting...
Page 750: ......
Page 751: ...DETAILED DESCRIPTIONS...
Page 752: ......
Page 754: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 2 SM IM C400F...
Page 756: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 4 SM 7 1 2 PAPER PATH IM C300 series...
Page 757: ...Machine Overview SM 7 5 D0CA D0C9 D0C8 D0CB Detailed Descriptions IM C400F...
Page 772: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 20 SM Electrical Parts IM C300 series IM C400 series...
Page 797: ...Laser Unit SM 7 45 D0CA D0C9 D0C8 D0CB Detailed Descriptions...
Page 848: ...Duplex D0CA D0C9 D0C8 D0CB 7 96 SM 7 16 DUPLEX 7 16 1 OVERVIEW IM C300 series...
Page 849: ...Duplex SM 7 97 D0CA D0C9 D0C8 D0CB Detailed Descriptions IM C400F...
Page 854: ...Duplex D0CA D0C9 D0C8 D0CB 7 102 SM...
Page 888: ......
Page 889: ...SMART OPERATION PANEL...
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Page 959: ...D0CA D0C9 D0C8 D0CB SERVICE MANUAL APPENDICES...
Page 960: ......
Page 964: ......
Page 966: ......
Page 981: ...APPENDICES PREVENTIVE MAINTENANCE TABLES...
Page 982: ......
Page 991: ...APPENDICES SP MODE TABLES...
Page 992: ......
Page 1454: ......
Page 1455: ...APPENDICES SOFTWARE CONFIGURATION...
Page 1456: ......
Page 1469: ...Scanner Features SM Appendices 4 13 D0CA D0C9 D0C8 D0CB Appendices Software Configuration...
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Page 1475: ......
Page 1552: ...Bit Switches 3 SM 77 D0CK...
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Page 1605: ......
Page 1614: ...Rear Cover SM 9 D3GQ 2 2 REAR COVER 1 Remove the rear cover A...
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