• Code: EE-EL
• Description: Auto developer adjustment trouble (Overtoner abnormality)
• Causes: Toner density sensor trouble, charging voltage/ developing voltage trouble, toner density trouble, developing unit trouble, PCU PWB trouble
• Remedy: Use SIM25-2 to execute the auto developer adjustment.

• Code: EE-EU
• Description: Auto developer adjustment trouble (Under-toner abnormality)
• Causes: Toner density sensor trouble, charging voltage/ developing voltage trouble, toner density trouble, developing unit trouble, PCU PWB trouble
• Remedy: Use SIM25-2 to execute the auto developer adjustment.

• Code: F1-00
• Description: Finisher communication trouble (Machine side detection)
• Causes: Communication line test error when turning on the power or after canceling an exclusion simulation. Communication error with the finisher
• Remedy: Case 1 Cause Malfunction due to electrical noises Check and remedy Turn OFF/ON the power to cancel. Case 2 Cause PCU finisher connector or harness connection error or disconnection Check and remedy Check the connector and harness in the communication line. Case 3 Cause Finisher control PWB trouble Check and remedy Replace the finisher control PWB. Case 4 Cause Control (PCU) PWB trouble Check and remedy Replace the PCU PWB.

• Code: F1-03
• Description: Finisher oscillation motor trouble
• Causes: Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
• Remedy: Use SIM3-3 to check the operation of the motor (FSWM). Replace the finisher control PWB.

• Code: F1-08
• Description: Finisher stapler shift motor trouble
• Causes: Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
• Remedy: Use SIM3-3 to check the operation of the staple motor (FSM). Replace the finisher control PWB.

• Code: F1-10
• Description: Finisher staple motor abnormality
• Causes: Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
• Remedy: Use SIM3-3 to check the operation of the staple motor (FFSM). Replace the finisher control PWB.

• Code: F1-15
• Description: Finisher tray lift motor abnormality
• Causes: Lift motor trouble
• Remedy: Case 1 Cause Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble Check and remedy Use SIM3-3 to check the operation of the tray lift motor (FTLM). Replace the finisher control PWB. Case 2 Cause Interlock switch (black bar-shape switch under the upper tray) operation Check and remedy Check that there is nothing on the interlock switch. If there is, remove it.

• Code: F1-19
• Description: Finisher pre-alignment motor abnormality
• Causes: Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
• Remedy: Use SIM3-3 to check the operation of the prealignment motor (FFJM). Replace the finisher control PWB.