1.SC Codes
21
Error Name/Error Condition/Major Cause/Solution
4. Replace the BCU board.
5. Replace the CIS –IPU/BCU harness
Error Name/Error Condition/Major Cause/Solution
M2P error occurs if the image transfer from the controller board to the IPU board is
delayed, that causes the image problems (horizontal streaks, fainter, etc.)
Noise
Connector not set properly
IPU defect
Check if the SC occurs by turning the power OFF then ON. If the SC occurs again,
do the following steps. Check if the SC reoccurs by cycling the power after each
step.
1. Reconnect the following connectors:
IPU/BCU - controller board harness connector
2. Replace the IPU board.
3. Replace the BCU board.
4. Replace the controller board
Error Name/Error Condition/Major Cause/Solution
IPU error (DRAM initial error)
This error is detected if execution of DDR-PHY initialization and Training status
fails to be confirmed within the specified period (5 ms) on the initialization control
flow that is performed in the ASIC (Macaron) of the IPU at power-ON or recovery
from energy-saving mode.
This can be caused by a failure in the Macaron or DRAM device itself, improper
mounting to the IPU board, or poor connection between the boards (the connector
or harness).
IPU board defective (e.g. poor connection of the Macaron/DRAM device)
Check if the SC occurs by turning the power OFF then ON. If the SC occurs again,
do the following steps. Check if the SC reoccurs by cycling the power after each
step.
1. Reconnect the following connectors:
All connectors related to the scanner
2. Replace the IPU board.
3. Replace the BCU board.