Ricoh D146 Service Manual page 489

SC No. Level
SC144-00 D
SC No. Level
SC161-01 D
SM
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
1. Turn the power off/on.
2. Reconnect the power/signal harness.
3. Replace the following parts:
§
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)
5-15
Service Call 101-195
D146/D147/D148/D149/D150