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41388601TH Rev.2 110 /
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2-3 Paper Feed Jam
• Does the paper jam occur immediately after the printer is powered on?
• Yes Is the paper jammed at the entrance belt sensor?
Yes Remove the jammed paper.
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• No Does the lever of the write sensor work right?
No Replace the lever of the write sensor.
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• Yes Does the entrance belt sensor work properly?
(Operate the sensor lever and verify the signal on the FSENS connector pin on the engine
board (K73 PWB).)
Pin 6: Entrance belt sensor
No Check the connection of the cable, or replace the sensor board (R71 PWB).
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• Yes Check the signal cable connection. Is it attached properly?
No Connect the cable properly.
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• Yes Replace the engine board.
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• No Does the paper jam occur immediately after paper is fed?
• Yes Does the paper reach the write sensor?
Yes Go to .
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• No Is the registration motor rotating?
• No Is the resistance of the registration motor at the rated value (approx. 7.9 Ω)?
No Replace the registration motor.
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• Yes Check the gear engagement, or replace the engine board.
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• Yes Replace the resistration roller (A) or (B).
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• No Does the paper jam occur when paper is loaded?
• Yes Does the belt motor rotate properly?
• No Is the resistance of the belt motor at the rated value (approx. 7.9 Ω)?
No Replace the belt motor.
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• Yes Check gear engagement, or replace the engine board.
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• Yes Check gear engagement, or replace the belt assy.
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• No End
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