Trouble Shooting StepsCauseSolutionParts1Fuser defective.Replace the fuser.Fuser (002-B209-0-SP)2Main board defective.Replace the main board MBA875.<Video Link>Main board (004-3424C-9-SP)

Trouble Shooting StepCauseSolutionParts1LPH activation abnormalReplace LPH FFC cableFFC cable (104-5251-9-SP)

Trouble Shooting StepsCauseSolutionParts1Fuser defective.Replace the fuser.Fuser (002-B209-0-SP)2Main board defective.Replace the main board MBA875.<Video Link>Main board (004-3424C-9-SP)

Trouble Shooting StepCauseSolutionParts1Operating temperature too low.Change the operating temperature and restart the printer.2Used voltage too lowCheck power and avoid using overloaded electrical appliances on the same line.3Thermistor faultReplace Fuser.Fuser (002-B209-0-SP)

Trouble Shooting StepsCauseSolutionParts1Fuser defective.Replace the fuser.Fuser (002-B209-0-SP)2Main board defective.Replace the main board MBA875.<Video Link>Main board (004-3424C-9-SP)

Trouble Shooting StepsCauseSolutionParts1Thermistor faultReplace the fuser.Fuser (002-B209-0-SP)2The main board is faultyReplace the main board MBA875 <Video Link>Main board (004-3424C-9-SP)

Trouble Shooting StepCauseSolutionParts1IFA133 board defective.Replace the IFA133.IFA133 (004-3315-9-SP)2Main board defective.Replace the main board MBA875 <Video Link>Main board (004-3424C-9-SP)

Trouble Shooting StepCauseSolutionParts2Duplex sensor defective.Replace the SBA234Duplex sensor (004-2714-9-SP)3Duplex roller failed.Replace the duplex unit.Pleaes contact service people: [email protected] board defective.Replace the main board MBA875 <Video Link>Main board (004-3424C-9-SP)

Trouble Shooting StepCauseSolutionPart1Main board malfunctioned.Replace the main board MBA875 <Video Link>Main board (004-3424C-9-SP)

Trouble Shooting StepCauseSolutionParts1Main board defective.Replace the main board MBA875 <Video Link>Main board (004-3424C-9-SP)