144DP-8032/80252008Ver.1.24.6. Error Codes (For Copier)The self-diagnostic functions detect troubles in the important components of the copier.When any trouble occurs, the copier stops.4.6.1. User Error Codes (U Code)Note:Uxx and a message will appear on the Panel Display.User Error Codes (U Code) TableCode Item Possible Cause(s)U0 Key Counter 1. Key Counter is not installed.2. Key Counter Harness disconnected.U1 Close Front Cover 1. Front Cover open.2. Front Cover Sensor disconnected.3. Front Cover Sensor defective4. LVPS connector disconnected.5. LVPS defective.6. SPC PCB connector disconnected.7. SPC PCB defective.U4 Close Finisher 1. Finisher open.2. Paper in the output bin.3. Stapler empty.4. LVPS connector disconnected.5. LVPS defective.6. SPC PCB connector disconnected.7. SPC PCB defective.U6 Close Right Cover 1. Right Cover open.2. Right Cover Sensor disconnected.3. Right Cover Sensor defective.4. LVPS connector disconnected.5. LVPS defective.6. SPC PCB connector disconnected.7. SPC PCB defective.U7 Close Feed Cover 1. Feed Cover open.2. Feeder Unit incorrectly installed.3. Feeder Unit connector disconnected.4. Feeder Unit Sensor disconnected.5. Feeder Unit Sensor defective.6. LVPS connector disconnected.7. LVPS defective.8. CST2/CST3 PCB connector disconnected.9. CST2/CST3 PCB defective.U8 Close Paper Transport Unit 1. Paper Transport Unit open.2. Paper Transport Unit Sensor disconnected.3. LVPS connector disconnected.4. LVPS defective.5. SPC PCB connector disconnected.6. SPC PCB defective.U11 Remove Paper in Finisher 1. Paper in the Finisher.2. Finisher Paper Exit Sensor defective.U12 Close Finisher Staple Cover / Upper Cover 1. Finisher Staple Cover open.2. Finisher Staple Cover Sensor disconnected.3. Finisher Staple Cover Sensor defective.
