Chapter 9
9-1
9.1 Control Panel
9.1.1 Outline
0016-1862
The machine's control panel consists of the following PCBs, and is controlled by the SCNT board.
F-9-1
9.2 Power Supply
9.2.1 Protection Function
9.2.1.1 Protecting Function
0016-1863
In the case of troubles with power supply PCB such as short circuit to loads, and resulted in occurring overcurrent or over overvoltage, there is a protecting function
for overcurrent/overvoltage to automatically shut the output voltage to avoid fault of power supply PCB.
In the case that the protecting function for overcurrent/overvoltage is activated, it recovers by turning off the main power switch to handle the load trouble, and
then, turning on the main switch again. Also, there are 2 pc of fuses in PCB. If there is overcurrent in AC line, fuse is blown out and power distribution is shutdown.
ASIC
LED
LCD
Key SW
SCNT board
Operation panel
Содержание ImageCLASS MF4690
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Страница 15: ...Chapter 1 Introduction ...
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Страница 23: ...Chapter 1 1 5 3 Coded Dial key ...
Страница 31: ...Chapter 2 Basic Operation ...
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Страница 37: ...Chapter 3 Original Exposure System ...
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Страница 42: ...Chapter 3 3 2 F 3 1 drive belt drive pulley drive pulley contact sensor Book motor M2 ...
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Страница 49: ...Chapter 4 Original Feeding System ...
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Страница 65: ...Chapter 6 Image Formation ...
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Страница 95: ...Chapter 9 External and Controls ...
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Страница 107: ...Chapter 10 Maintenance and Inspection ...
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Страница 127: ...Chapter 13 Error Code ...
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Страница 135: ...Chapter 14 Service Mode ...
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Страница 175: ...Chapter 15 Service Tools ...
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