![background image](http://html1.mh-extra.com/html/okidata/ol1200ex/ol1200ex_service-manual_3678465134.webp)
t
No
Is the heater or thermistor open?
Measure the resistance between the heater contacts (normal resistance: 220 kW
(25°C) between pins 1 and 2, 2.3 W (120 V) and 8.5 W (240 V) between pins 3 and 4)
(See chapter 7.3.)
Yes
Replace the fuser unit.
t
No
Is the AC voltage applied to the CN2 connector on the Power/sensor board? (See
Fig. 4.)
No
Is CN2 connector connected to the Power/sensor board?
No
Connect the CN2 connector to the Power/sensor board properly.
t
Yes
Is Pin 31 (HEAT ON signal) of the POWER connector of the Control board turned
on? (In normal state, this pin is set to 0 V).
No
Replace the Control board.
t
Yes
Replace the Power/sensor board.
t
YES
Go to B.
Содержание OL1200ex
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Страница 39: ...3 2 Parts Layout 1 4 3 2 Parts Layout 1 4...
Страница 40: ...Parts Layout 2 4 Parts Layout 2 4...
Страница 41: ...Parts Layout 3 4 Parts Layout 3 4...
Страница 42: ...Parts Layout 4 4 Parts Layout 4 4...
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Страница 87: ...User maintenance mode menu system User maintenance mode menu system...
Страница 89: ......
Страница 90: ...System maintenance mode menu system System maintenance mode menu system...
Страница 92: ...Note Do not change the default value of 2 5 9 they are the parameters for adjusting in the factory...
Страница 93: ...Engine maintenance mode menu system Engine maintenance mode menu system...
Страница 94: ......
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Страница 125: ...Fig 6 2 Measurement by a Multimeter Fig 6 3 Connector and Pin Location...
Страница 139: ......
Страница 144: ...No Replace the control board or Power Sensor board...
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Страница 152: ...Chapter 7 7 Wiring Diagram 7 WIRING DIAGRAM 7 1 Interconnect Signal Diagram...
Страница 153: ...7 2 PCB Layout 7 2 PCB Layout 1 Control board AOLM...
Страница 154: ......
Страница 155: ...7 3 Resistance Check 7 3 Resistance Check...
Страница 157: ...Chapter 8 8 Parts List 8 PARTS LIST Figure 8 1 Printer Unit Name Rating OKI J Part No Qty 50 500 1000 Remarks...
Страница 159: ...21 AOLM PCB 4YA4046 163 4G11 1 2 5 10 55077311...
Страница 173: ...1 2 External View and Component Names 1 2 External View and Component Names...
Страница 177: ...3 2 Parts Layout 3 2 Parts Layout This section describes the layout of the main components...
Страница 190: ...5 Connection Diagram 5 CONNECTION DIAGRAM 5 1 Interconnection Diagram...
Страница 191: ...5 2 PCB Layout 5 2 PCB Layout AOLT PCB...
Страница 195: ...1 2 External View and Component Names 1 2 External View and Component Names...
Страница 199: ...3 2 Parts Layout 3 2 Parts Layout This section describes the layout of the main components...
Страница 212: ......
Страница 213: ...5 Connection Diagram 5 CONNECTION DIAGRAM 5 1 Interconnection Diagram AOLE PCB...
Страница 214: ...5 2 PCB Layout 5 2 PCB Layout AOLE PCB...