• Code: U2-12
• Description: Adjustment value check sum error (Controller)
  Adjustment data area check sum error
• Causes: EEPROM trouble Control circuit trouble by noise Controller PWB EEPROM access circuit trouble
• Remedy: Check that EEPROM is properly inserted. Save the counter/adjustment values with the DIAG simulation. Use DIAG (SIM16) to cancel U2 trouble. Replace the Controller PWB.

• Code: U2-80
• Description: EEPROM read/write error (Scanner)
  Scanner EEPROM write error
• Causes: EEPROM abnormality EEPROM which is not initialized is installed. Hang of control circuit due to noises Scanner PWB EEPROM access circuit abnormality
• Remedy: Check that EEPROM is set properly. Record counter/adjustment values with the simulation to protect the data from being deleted. Cancel U2 trouble with SIM 16. Replace scanner PWB.

• Code: U2-81
• Description: Memory check sum error (Scanner)
  Scanner memory check sum error
• Causes: EEPROM trouble Control circuit freeze by noises Scanner PWB EEPROM access circuit trouble
• Remedy: Check that EEPROM is set properly. Record counter/adjustment values with the simulation to protect the data from being deleted. Cancel U2 trouble with SIM 16. Replace scanner PWB.

• Code: U2-90
• Description: EEPROM read/write error (PCU)
  PCU EEPROM write error
• Causes: EEPROM trouble EEPROM is not initialized. Hang of control circuit due to noises PCU PWB EEPROM access circuit trouble
• Remedy: Check that EEPROM is properly inserted. Save the counter/adjustment values with the DIAG simulation. Use DIAG (SIM16) to cancel U2 trouble. Replace the Controller PWB.

• Code: U2-91
• Description: Memory check sum error (PCU)
  PCU memory check sum error
• Causes: EEPROM trouble EEPROM is not initialized. PCU PWB EEPROM access circuit trouble Uninitialized EEPROM installed.
• Remedy: Check that EEPROM is properly inserted. Save the counter/adjustment values with the DIAG simulation. Use DIAG (SIM16) to cancel U2 trouble. Replace the Controller PWB.

• Code: U6-00
• Description: Desk/LCC communication trouble
  Desk/LCC communication error Communication cable test error after turning on the power or exiting DIAG.
• Causes: Improper connection or disconnection of connector and harness Desk control PWB trouble Control PWB (PCU) trouble Noise or interference
• Remedy: Canceled by turning OFF/ON the power. Check connection of the harness and connector in the communication line.

• Code: U6-01
• Description: Desk/LCC No. 1 tray lift-up trouble
  Desk/LCC No. 1 tray lift-up trouble
• Causes: Sensor trouble Desk control PWB trouble Gear breakage Lift-up motor trouble
• Remedy: Use DIAG (SIM4-2) to check the lift-up sensor detection. Use DIAG (SIM4-3) to check the lift-up motor operation.

• Code: U6-02
• Description: Desk No. 2 tray/LCC1 lift-up trouble
  Desk No. 2 tray/LCC lift-up trouble
• Causes: Sensor trouble Desk control PWB trouble Gear breakage Lift-up motor trouble
• Remedy: Use DIAG (SIM4-2) to check the lift-up sensor detection. Use DIAG (SIM4-3) to check the lift-up motor operation.