Aficio 2075 sc 990 - Ricoh Aficio 450 Copier

SC-990 - Communication problem between BICU and input output board or software performance error.

I would suggest contacting Ricoh customer service.

Contact your nearest Ricoh service center, don't try anything by yourself you may incur controller damage

These machines want their drums/pcu at 150K. SC990 is usually a good indication of a bad drum.

This is a developer motor lock - may need the machine to be stripped down and cleaned out or a replacement motor.

Format HDD's?

SC 990 is software performance error. This means The software attempted to perform an unexpected operation.
Possible causes:
1. Software defective
2.Internal parameter incorrect
3.Insufficient working memory
4.When SC occurs, the file name, address and data will be stored in NV RAM this information can be checked by using SP 7403. Note the above data and situation in which this SC occurs. Then report the data and conditions to your technical control center.

Ol? tudo bem! o erro funcional (SC 536) trata-se de um cooler ou do sensor de temperatura que parou de funcionar levando o sistema a parar de funcionar por medida de seguran?a, infelizmente trata-se de um daqueles problemas que s? a autorizada resolve.

SC 990 means that the hard drive for the finisher is not working correctly. You will need to replace the hard drive on the rear of the copier > it is used when the finisher is being used. I had one that always showed up even after replacing the HD > I finally, took the finisher off and that was the end of it.... It is time for a new copier..... Good Luck

SC990: Software Performance Error
Definition [B]
The software performs an unexpected function.
Possible Causes
• Software defective

sc 990 relates to the nv ram chip on the main board also check the values of the lazer unit are correct and not changed