Ricoh Aficio MP171 Field Service Manual page 142

6. Troubleshooting
SC No.
SC816-36
to94
SC No.
SC818-00
SC No.
SC833-00
140
Level Error Name/Error Condition/Major Cause/Solution
D Subsystem error
Energy save I/O subsystem detected some abnormality.
• Energy save I/O subsystem defective
• Energy save I/O subsystem detected a controller board error (non-
response).
• Error was detected during preparation for transition to STR.
• Turn the main power off/on.
• Replace the controller board.
Level Error Name/Error Condition/Major Cause/Solution
Watchdog timer error
• The system program fell into a bus-hold state or an endless loop of
the program interruption occurred, causing other process to stop.
• System program defective
D • Controller board defective
• Optional board defective
• Turn the main power off/on.
• Replace the controller board.
• Replace the optional devices.
Level Error Name/Error Condition/Major Cause/Solution
Self-diagnostic error: Engine I/F ASIC
D
Self-diagnostic error: Video I/F