Sc8Xxx - Ricoh Neptune-P1 Service Manual

fold unit did not change 1 sec. after
the plate started to move.
790 D PCB fan error: Folder Unit
The machine detected a continuous
lock signal from the PCB cooling
fan on the PSU for 20 sec.

SC8XXX

819 C Fatal kernel error
Due to a control error, a RAM overflow
occurred during system processing.
Note: For more details about this SC code error, execute SP5990 to print an SMC report so that you can
read the error code. The error code is not displayed on the operation panel.
Self-Diagnostic Error: CPU
820 D
The CPU returned an unexpected error
during the self-diagnostic test.
Self-diagnostic error 2: ASIC
821 D
The ASIC provides the central point for the
control of bus arbitration for CPU access, for
• Rear fold plate HP sensor harness connector
loose, disconnected, broken
• Fold plate motor (R) defective
• Rear fold plate HP sensor defective
• Undetected paper is jamming the action of the
motor or fold plate
• Fan folder unit MCU defective
• Fan harness connector loose, disconnected,
broken
• Overload on the fan motor due to physical
obstruction such has undetected paper, etc.
• Fan defective
• MCU folder unit defective
• Controller board defective
• Insufficient memory
• Expanded memory defective
• Controller board defective
• Insufficient memory
• Expanded memory defective
• Controller board defective
SC Code Descriptions
4
201