Question about Ricoh Aficio CL2000N Laser Printer

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Printer was off for two weeks and now error sc471

The printer was off for 2 weeks during office renovation and once we connected it back we now get error SC471. I appreciate any help in this.

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SC471 means: Belt tension unit cam error. Even though the belt tension unit tires to return to its home position several times, the home position sensor is not activated.

Possible Causes:

Defective transfer belt unit.

Defective transfer belt tension unit.

CN25 Pin 3 on the engine board is unable to send a signal.

Suggested fixes:

Replace the transfer belt unit.

Replace the engine control board.

Replace the transfer belt tension unit.

I would start by opening it up and inspecting the transfer belt and associated parts. Pull them out and re-seat them. Look for broken wires, stripped gears, gunk in the works. Clean it, then put it back together and test.

If you aren't up to it, it is probably time to call the repair man.

Posted on Jan 15, 2009


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Hi there the following is taken from the service manual hope this can help you.

471 Belt tension unit cam error
Even though the belt
tension unit tries to return to
its home position several
times, the home position
sensor is not activated.
• Defective transfer belt unit
• Pin 3 (CN25 on engine control board) unable to
send signal
• Defective transfer belt tension unit
1. Replace the transfer belt unit.
2. Replace the engine control board.
3. Replace the transfer belt tension unit.

Thanks J

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