120UF-9000JAN 2004Ver. 1.0DP-180/1904.7. Error Codes (For Copier)The self-diagnostic functions detect troubles in the important components of the copier. When troubleoccurs, the copier stops.Note:Some Codes are not used in the UF-9000/DP-180/190, and are reserved for future use.4.7.1. User Error Codes (U Code)Note:Uxx and a message will appear on the Panel Display.User Error Codes (U Code) TableCode Item Check PointsU01 CLOSE FRONT COVER 1. Front Cover is open.2. Front Cover Sensor is disconnected.3. Front Cover Sensor is defective.4. LVPS connector is disconnected.5. LVPS is defective.6. Engine PCB is defective.U13 TONER IS RUNNIG LOWorOUT OF TONER1. Toner Cartridge is incorrectly installed.2. Low Toner.3. Toner Sensor is disconnected.4. Toner Sensor is defective.5. Engine PCB connector is disconnected.6. Engine PCB is defective.U16 NO CARTRIDGE 1. No Toner Cartridge.U20 CLOSE ADF COVER 1. ADF Cover is open.2. ADF is not installed correctly.3. ADF Cover Sensor is disconnected.4. ADF Cover Sensor is defective.5. LVPS connector is disconnected.6. LVPS is defective.U21 CLOSE PLATEN COVER While the copier is initializing, the ADF Cover wasopened.U52 SCANNER SELF-CHECK 1. SC/SPC PCB connector is disconnected.2. SC/SPC PCB is defective.U90 REPLACE BATTERY Backup Battery is wearing out.U21U20U90U13 / U16U01U52
