Ricoh MP C6502SP Field Service Manual page 1035

SC No. Level
SC144-00 D
SC No. Level
SC161-01 D
Error Name/Error Condition/Major Cause/Solution
SBU Communication Error
• Connection to SBU cannot be confirmed. (Connection detection
error)
• Cannot communicate with the SBU, or the communication result is
abnormal.
• SBU defective
• The other side of the communication (BCU, IPU etc.) defective
• Power/signal harness defective
• Cycle the machine off/on.
• Reconnect the power/signal harness.
• Replace the SBU board.
• Replace the IPU board.
• Replace the BCU board.
• Replace the power/signal harness.
Error Name/Error Condition/Major Cause/Solution
IPU Error (LSYNC abnormal)
An error occurred during the self-diagnostic test performed every time the
machine is turned on, or returns to full operation from energy save mode.
• IPU (BiCU, iCTL) board defective (ASIC-LEO connection failure,
LSYNC abnormal, etc.)
• Cable between SBU and IPU (or BiCU) defective
• Replace the IPU (or BiCU) board.
• Check the cable between SBU and IPU (or BiCU)
Service Call 101-195
1033