Paper Feed Jam - OKIDATA OL1200ex Service Manual

%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?
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No Does the paper sensor lever operate smoothly?
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Yes Clean the paper sensor. (See Fig. 2-3 Sensor Layout Diagram.)
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Is the printer recovered?
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YES END.
No Has the paper reached the paper sensor lever?
No Is the registration motor rotating?
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Go to on the next flow .
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Go to on the next flow.
Yes Remove the paper.
No Replace the paper sensor lever.
No Replace the Power/sensor board.
No Is there any defective gear in the motor bracket assembly.
Yes Replace the defective gear.
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.
Yes Is the coil resistance (normal resistance: 6.7 W) of the registration
motor normal?
No Replace the registration motor
Yes Replace the Driver board.
Is the printer recovered?
No Replace the Control board.
YES END.