• Code: SC120-00
• Description: Scanner Home Position Error 1 The scanner home position sensor does not go OFF. Details: Error detection timing • During homing (when the machine is turned ON or when it returns from energy save mode) • During an automatic adjustment (when the machine is turned ON or when it returns from energy save mode) • During a scan from the ADF or exposure glass.
• Causes: • Scanner motor driver defective • Scanner motor defective • Scanner HP sensor defective • Harness defective • Timing belt, pulley, wire, or carriage not installed correctly
• Remedy: Replace the following parts: • Replace the HP sensor • Replace the scanner motor • Replace the harness.

• Code: SC121-00
• Description: Scanner Home Position Error 2 The scanner home position sensor does not go ON. Details: Error detection timing • During homing • During an automatic adjustment • During a scan from the ADF or exposure glass.
• Causes: • Scanner motor driver defective • Scanner motor defective • Scanner HP sensor defective • Harness defective • Timing belt, pulley, wire, or carriage not installed correctly
• Remedy: Replace the following parts: • Replace the home position sensor • Replace the scanner motor • Replace the harness.

• Code: SC141-00
• Description: Black level detection error The black level cannot be adjusted within the target during auto gain control.
• Causes: • SBU defective • IPU defective • Power/signal harness defective
• Remedy: 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 power/signal harness.

• Code: SC142-00
• Description: White level detection error The white level cannot be adjusted to the second target level within the target during auto gain control.
• Causes: • SBU defective • LED defective • IDB (LED driver) defective • IPU defective • Power/signal harness defective • Scanner drive error • Condensation in scanner unit • Mirrors or lenses dirty or positioned incorrectly • White plate dirty or installed incorrectly
• Remedy: 1. Turn the power off/on. 2. Perform the following operations: • Reconnect the power/signal harness. • Reattach/clean the mirrors/lenses. • Reattach/clean the white plate. 3. Replace the following parts: • Replace the SBU board. • Replace the LED board. • Replace the IDB board. • Replace the IPU board. • Replace the SIO board. • Replace the power/signal harness.

• Code: SC144-00
• Description: SBU Communication Error • Connection to SBU cannot be confirmed. (Connection detection error) • Cannot communicate with the SBU, or the communication result is abnormal.
• Causes: • SBU defective • The other side of the communication (BCU, IPU etc.) defective • Power/signal harness defective
• Remedy: 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.

• Code: SC161-01
• Description: 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.
• Causes: • IPU (BiCU, iCTL) board defective (ASIC-LEO connection failure, LSYNC abnormal, etc.) • Cable between SBU and IPU (or BiCU) defective
• Remedy: • Replace the IPU (or BiCU) board. • Check the cable between SBU and IPU (or BiCU)

• Code: SC161-02
• Description: IPU error (Ri response abnormal) The machine detects an error during an access to the Ri.
• Causes: IPU (BiCU, iCTL) board defective (Ri response abnormal, etc.)
• Remedy: Replace the IPU (or BiCU) board.

• Code: SC165-00
• Description: Copy data security unit error • The copy data security option is enabled in the User Tools but the option board is detected as missing or defective. • The copy data security option was detected as defective when the machine was turned on or returned from energy save mode.
• Causes: • Copy data security unit board not installed correctly • Copy data security unit board defective
• Remedy: • Reinstall the copy data security unit board. • Replace the copy data security unit board.