![background image](http://html1.mh-extra.com/html/okidata/ol1200ex/ol1200ex_service-manual_3678465129.webp)
From on the preceding page .
From on the preceding page .
t
Yes
Is the image drum set properly?
No
Set the image drum properly.
t
Yes
In case of paper feed from the front feeder, check the hopping roller of the
front feeder assembly. In case of paper feed from the tray, check the hopping
roller assembly and the tray.
t
Yes
Has the paper reached the outlet sensor lever?
Yes
Does the outlet sensor lever operate smoothly?
No
Replace the outlet sensor lever.
t
Yes
Clean the outlet sensor on the Power/sensor board. (See Fig. 2-3 Sensor
Layout Diagram.)
t
Is the printer recovered?
No
Replace the Power/sensor board.
t
YES END.
t
No
Is the drum motor rotating?
No
Is there any defective gear in the motor bracket assembly?
Yes
Replace the defective gear.
t
No
Are the connections for CN3 connector on the Power/sensor board between
CN8 and CN6 connectors and drum motor, and for POWER connector and
FRONT connector (white 9-pin or 7-pin connector) on the Control board made
properly?
No
Connect these connectors properly.
t
Yes
Is the coil resistance (normal resistance between pins 1 and 2, between pins 3
and 4 : 4.3 W) of the drum motor normal?
No
Replace the drum motor.
t
Yes
Replace the driver board.
t
Is the printer recovered?
No
Replace the Control board.
t
YES END.
t
Go to on the next flow.
Summary of Contents for OL1200ex
Page 8: ......
Page 16: ......
Page 18: ......
Page 39: ...3 2 Parts Layout 1 4 3 2 Parts Layout 1 4...
Page 40: ...Parts Layout 2 4 Parts Layout 2 4...
Page 41: ...Parts Layout 3 4 Parts Layout 3 4...
Page 42: ...Parts Layout 4 4 Parts Layout 4 4...
Page 57: ......
Page 62: ......
Page 77: ......
Page 79: ......
Page 87: ...User maintenance mode menu system User maintenance mode menu system...
Page 89: ......
Page 90: ...System maintenance mode menu system System maintenance mode menu system...
Page 93: ...Engine maintenance mode menu system Engine maintenance mode menu system...
Page 94: ......
Page 120: ......
Page 125: ...Fig 6 2 Measurement by a Multimeter Fig 6 3 Connector and Pin Location...
Page 139: ......
Page 144: ...No Replace the control board or Power Sensor board...
Page 150: ......
Page 151: ......
Page 152: ...Chapter 7 7 Wiring Diagram 7 WIRING DIAGRAM 7 1 Interconnect Signal Diagram...
Page 153: ...7 2 PCB Layout 7 2 PCB Layout 1 Control board AOLM...
Page 154: ......
Page 155: ...7 3 Resistance Check 7 3 Resistance Check...
Page 159: ...21 AOLM PCB 4YA4046 163 4G11 1 2 5 10 55077311...
Page 173: ...1 2 External View and Component Names 1 2 External View and Component Names...
Page 177: ...3 2 Parts Layout 3 2 Parts Layout This section describes the layout of the main components...
Page 190: ...5 Connection Diagram 5 CONNECTION DIAGRAM 5 1 Interconnection Diagram...
Page 191: ...5 2 PCB Layout 5 2 PCB Layout AOLT PCB...
Page 195: ...1 2 External View and Component Names 1 2 External View and Component Names...
Page 199: ...3 2 Parts Layout 3 2 Parts Layout This section describes the layout of the main components...
Page 212: ......
Page 213: ...5 Connection Diagram 5 CONNECTION DIAGRAM 5 1 Interconnection Diagram AOLE PCB...