OKIDATA OL1200ex, Service Manual

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%2-3 Paper feed jam
2-3 Paper feed jam
Does a paper feed jam occur when the power is turned on?
Yes Is the paper on the paper sensor lever?
Yes Remove the paper.
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No Does the paper sensor lever operate smoothly?
No Replace the paper sensor lever.
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Yes Clean the paper sensor. (See Fig. 2-3 Sensor Layout Diagram.)
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Is the printer recovered?
No Replace the Power/sensor board.
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YES END.
No Has the paper reached the paper sensor lever?
No Is the registration motor rotating?
No Is there any defective gear in the motor bracket assembly.
Yes Replace the defective gear.
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No Are the connections for CN3 connector on the Power/sensor board,
between CN8 and CN7 connectors on the Control board and
registration motor, and for POWER connector and FRONT connector
(white 9-pin or 7-pin connector) made properly.
No Connect these connectors properly. If a defective cable is
found, replace the defective cable.
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Yes Is the coil resistance (normal resistance: 6.7 W) of the registration
motor normal?
No Replace the registration motor
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Yes Replace the Driver board.
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Is the printer recovered?
No Replace the Control board.
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YES END.
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Go to on the next flow .
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Go to on the next flow.