Ricoh Aficio MP171 - SC600 (Device Communication); SC641-00 Communication error: Engine; SC653-00 Incorrect remote service ID2

SC600 (Device Communication)
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC641-00 D
• Communication error: Engine (Timeout error)
• Communication error: Engine (Retry error)
• There is no response from the engine even after the timeout period
specified during the communication has elapsed.
• The communication has failed when sending the normal mode
(ESIF_LECI_NORMAL) command even after exceeding the
maximum number of command transmission retry.
• Controller board/software defective
• The connection between the controller board and engine board is
faulty.
• Engine board/software defective
• Check the connection between the controller board and engine
board.
• Turn the main power off/on.
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC653-00 D
Incorrect remote service ID2
If the serial number*1 for producing ID2*2 has any of the following
problems:
• Blank
• Contains control characters
• Cannot be read
*1: The serial number refers to "MachineSerial Set" (SP5-811-001).
*2: ID2 refers to "Machine No. Setting" (SP5-811-003).
• The serial number was not specified at the factory.
• The NV memory is corrupted and cannot be read.
• The NV memory has been corrupted while writing data into it.
• Turn the main power off/on.
If the problem persists, the hardware is faulty.
Service Call
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