• Code: SC 101
• Description: Exposure lamp error • The standard white level is not properly detected when scanning the shading plate. (The shading data peak does not reach the specified threshold.)
• Causes: • Exposure lamp defective • Lamp stabilizer defective • Exposure lamp connector defective • Standard white plate dirty • Scanner mirror or scanner lens out of position or dirty • SBU defective
• Remedy: 1. Turn the main switch off and on. 2. Turn the power key off and on. 3. Check and clean the scanner mirror(s) and scanner lens. 4. Check and clean the shading plate. 5. Replace the exposure lamp. 6. Replace the lamp stabilizer. 7. Replace the scanner mirror(s) or scanner lens. 8. Replace the SBU.

• Code: SC 120
• Description: Scanner home position error 1 • The scanner home position sensor does not detect the on condition during scanning.
• Causes: • Scanner PSU or SBU defective • Scanner motor defective • Harness between scanner PSU and scanner motor disconnected • Scanner HP sensor defective • Harness between SBU and HP sensor disconnected • Scanner wire, timing belt, pulley, or carriage defective
• Remedy: 1. Turn the main switch off and on. 2. Check the cable connection between the scanner PSU and scanner motor. 3. Check the cable connection between the SBU and HP sensor. 4. Replace the SBU or scanner PSU. 5. Replace the scanner motor. 6. Replace the HP sensor. 7. Replace the scanner wire, timing belt, pulley, or carriage.

• Code: SC 121
• Description: Scanner home position error 2 • The scanner home position sensor does not detect the off condition during scanning.
• Causes: • Scanner PSU or SBU defective • Scanner motor defective • Harness between scanner PSU and scanner motor disconnected • Scanner HP sensor defective • Harness between SBU and HP sensor disconnected • Scanner wire, timing belt, pulley, or carriage defective
• Remedy: 1. Turn the main switch off and on. 2. Check the cable connection between the scanner PSU and scanner motor. 3. Check the cable connection between the SBU and HP sensor. 4. Replace the SBU or scanner PSU. 5. Replace the scanner motor. 6. Replace the HP sensor. 7. Replace the scanner wire, timing belt, pulley, or carriage.

• Code: SC 122
• Description: Scanner home position error 3 • The scanner home position sensor does not detect the home position during initialization.
• Causes: • Scanner PSU or SBU defective • Scanner motor defective • Harness between scanner PSU and scanner motor disconnected • Scanner HP sensor defective • Harness between SBU and HP sensor disconnected • Scanner wire, timing belt, pulley, or carriage defective
• Remedy: 1. Turn the main switch off and on. 2. Check the cable connection between the scanner PSU and scanner motor. 3. Check the cable connection between the SBU and HP sensor. 4. Replace the SBU or scanner PSU. 5. Replace the scanner motor. 6. Replace the HP sensor. 7. Replace the scanner wire, timing belt, pulley, or carriage.

• Code: SC 142
• Description: White level detection error • The white level cannot be adjusted within the target during auto gain control.
• Causes: • Dirty exposure glass or optics section • SBU board defective • IPU board defective • Exposure lamp defective • Lamp stabilizer defective
• Remedy: 1. Turn on the main switch off and on. 2. Clean the exposure glass, white plate, mirrors, and lens. 3. Check if the exposure lamp is lit during initialization. 4. Check the harness connection between SBU and IPU. 5. Replace the exposure lamp. 6. Replace the SBU board. 7. Replace the IPU board

• Code: SC 161
• Description: IDU error • After the command is written into the DFID selfdiagnosis startup register, the correct value is not stored in the register in the specified duration. NOTE: This error is detected when the main switch is turned on. • After the negate interruption of FGATE occurs, IDU is not recognized in the specified duration. NOTE: This error is detected during scanning operations.
• Causes: • IPU board defective (defective connection between ASIC and DFID, or Defective LSYNC)
• Remedy: 1. Turn the main switch off and on. 2. Replace the IPU board.

• Code: SC 195
• Description: Serial Number Mismatch • Serial number stored in the memory does not consist of the correct code.
• Causes: • NVRAM defective • BCU replaced without original NVRAM
• Remedy: Open the front cover and turn on the main switch. Check the serial number with SP5-811-002. If the stored serial number is incorrect, contact your product specialist for details of how to solve the problem.

• Code: SC 201
• Description: Polygon motor error • The polygon mirror motor does not reach the targeted operating speed within 15 seconds after turning on. • The lock signal does not become high within 15 seconds after turning off the polygon motor. • The lock signal does not become low within 0.2 second after the polygon motor reaches the targeted operating speed.
• Causes: • Polygon mirror motor error • Abnormal GAVD behavior • Cable disconnection
• Remedy: 1. Turn the main switch off and on. 2. Check the cables. 3. Replace the polygon motor.