Ricoh DX4640PD

• Code: SC990
• Description: Software performance error The software attempted to perform an unexpected operation.
• Causes: • Software of ACU defective • Internal parameter incorrect • Insufficient working memory

• Code: SC991
• Description: Software continuity error The software attempted to perform and unexpected operation. However, unlike SC990, the object of the error is continuity of the software.
• Causes: • Software bug • Internal parameter incorrect • Insufficient working memory

• Code: SC992
• Description: Undefined error
• Causes: An undefined error has occurred.

• Code: SC998
• Description: Application start error After power on the application does not start within 60 s. (All applications neither start nor end normally.)
• Causes: • Software defective • An option required by the application (RAM, DIMM, board) is not installed

• Code: SC999
• Description: Program download error Download from SD card finished with an error
• Causes: • Board installation error • ECU board error • SD card error • Power shut down during download; replace the ACU board • Incorrect type of card