41956001TH Rev.6 117 /
Oki Data CONFIDENTIAL
2-5 Duplex jam
• Do path jams occur right after power ON?
• Yes Is there paper in the duplex print unit?
Yes Remove the jammed paper.
(A)
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• No Do the duplex unit entrance sensor, rear sensor, and sensor lever of the front sensor function
properly?
No Replace the faulty sensor lever.
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• Yes Do the duplex unit entrance sensor, rear sensor, and front sensor function properly?
(Check if the level of each sensor is “no paper” with the switch scan test in the system
maintenance mode.)
No Check the cable connections, then replace the faulty sensor.
▼
• Yes Check the signal cable connection.
Is it connected properly?
No Connect the cable properly.
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• Yes Replace the duplex print control board (V73 PWB)
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• No Do path jams occur right after papers are absorbed?
• Yes Did the paper reach the duplex print rear sensor?
• Yes Proceed to (A).
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• No Is the duplex print motor rotating?
• No Is the duplex print motor resistance within the regulated value (approx. 6.7Ω)?
No Replace the duplex print motor.
▼
• Yes Check the gear mesh status, then replace the duplex print board (V73 PWB).
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• Yes Replace resist motor A or B.
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• No Replace the duplex print unit.
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