Question about Ricoh Aficio MP 2000 Black and White Copier
The error sc 547 refers to a "Zero cross signal malfunction".
This means that the applied power supply AC frequency was detected at over 66Hz or below 45Hz, and the zero cross signals are not detected within a certain period within 500 ms after the main power switch has been turned on.
Possible causes are:
- Power supply board defective
- IOCSS defective
- BICU defective
Try to reset the SC code by entering SP5810 and select 1.
Then hold down the photo mode key and the # key at the same time for at least 3 second.
Then turn the machine off and on again.
If the same issue still appears, try to replace the Power Supply Unit.
Posted on Jul 05, 2010
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Posted on Jan 02, 2017
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