• Code: L6 10
• Description: Polygon motor lock detection. It was judged that there is no output of polygon motor lock signal of LSU. The lock signal was checked at about 10-second intervals after the polygon motor started rotating. As result, it was judged that the polygon motor failed to operate normally.
• Causes: Disconnected connecter to LSU or detached harness inside LSU or broken wire. Polygon motor defective
• Remedy: Check polygon motor operation with SIM61-1. Check harness and connector for connection. Replace LSU if needed.

• Code: L8 01
• Description: No full-wave signal. Full-wave signal is not detected.
• Causes: PCU PWB trouble Power unit trouble
• Remedy: Check connection of the harness and the connector. Replace the PCU PWB. Replace the power unit.

• Code: L8 02
• Description: Full-wave signal frequency abnormality detected. (The detected frequency: 69Hz or above or 42.5Hz or below)
• Causes: Check for disconnection or improper connection of the connector of the PCU PWB and the power PWB harness. PCU PWB trouble Power unit trouble
• Remedy: Check connection of the harness and connector. Replace the power unit.

• Code: PF 00
• Description: RIC copy inhibition command reception. Copy inhibition command received from RIC (host)
• Causes: Judged by the host.
• Remedy: Notice to the host

• Code: U2 00
• Description: EEPROM version error. Error in writing into EEPROM.
• Causes: EEPROM defective Uninitialized EEPROM is installed Defective EEPROM access circuit on PCU PWB
• Remedy: Check EEPROM for proper set-up To prevent the erasure of counter data and adjustment values, write down the counter data and adjustment values by simulation. (If there is a printer option, execute SIM23-1 and note counter data/adjustment values.) Clear U2 trouble with SIM16. Replace PCU PWB.

• Code: U2 11
• Description: Counter check sum error (EEPROM). Checksum error in counter data area
• Causes: EEPROM defective Control circuit hung up due to noise Defective EEPROM access circuit on PCU PWB
• Remedy: Check EEPROM for proper set-up To prevent the erasure of counter data and adjustment values, write down the counter data and adjustment values by simulation. (If there is a printer option, execute SIM23-1 and note counter data/adjustment values.) Clear U2 trouble with SIM16. Replace PCU PWB.

• Code: U2 12
• Description: Adjustment value check sum error (EEPROM). Checksum error in adjustment value data area
• Causes: EEPROM defective Control circuit hung up due to noise. Defective EEPROM access circuit on PCU PWB
• Remedy: Check EEPROM for proper set-up To prevent the erasure of counter data and adjustment values, write down the counter data and adjustment values by simulation. (If there is a printer option, execute SIM23-1 and note counter data/adjustment values.) Clear U2 trouble with SIM16. Replace PCU PWB.

• Code: U4 02
• Description: ADU alignment plate operation abnormality. The plate won’t move from home position more than 1 second after sending the command to leave home position. Or the plate won’t return to home position within 5 seconds after sending the command to return to home position.
• Causes: Home position sensor defective Alignment shift motor defective Improper connection of harness between PCU PWB, motor and sensor. Control PWB (PCU) defective Alignment plate driving belt or gear damaged or improperly adjusted
• Remedy: Check home position sensor detection with SIM9-2. Check alignment plate operation with SIM9-4. Check connection between PCU, motor and sensor. Remove ADU and check gear and belt for damage.