Trouble shooting StepCauseSolutionParts1Deskew sensor defective.Replace deskew sensor.Deskew sensor (008-0364-9-SP)2Deskew clutch defective.Replace deskew clutch.Deskew clutch (008-2036-9-SP)3Main board defective.Relace main board MBA890.Main board:AM7630i (004-3479A-9-SP)AM7640i (004-3479B-9-SP)AM5630i (004-3479C-9-SP)AM5640i (004-3479D-9-SP)

Trouble shooting StepCauseSolutionParts1Paper-jam sensor (tray 4) defective.Replace paper-jam sensor.Paper-jam sensor (008-0364-9-SP)2Tray control broad (tray 4) defective.Replace tray control broad MBA762.Tray control broad (004-2882-9-SP)

Trouble shooting StepCauseSolutionParts1Paper-jam sensor (tray 2) defective.Replace paper-jam sensor.Paper-jam sensor (008-0364-9-SP)2Tray control broad (tray 2) defective.Replace tray control broad MBA762.Tray control broad (004-2882-9-SP)

Trouble Shooting StepCauseSolutionParts1Main board defective.Relace main board MBA890.Main board:AM7630i (004-3479A-9-SP)AM7640i (004-3479B-9-SP)AM5630i (004-3479C-9-SP)AM5640i (004-3479D-9-SP)

Trouble Shooting StepCauseSolutionParts1Fuser lifetime ends.Replace fuser.Fuser (015-0301-0)2Not reset fuser counter.Reset fuser counter.

Trouble Shooting StepCauseSolutionParts1LVPS(Low-Voltoge Power Supply) defective.Replace LVPS.LVPS (005-3140-9-SP)2Main board defective.Relace main board MBA890.Main board:AM7630i (004-3479A-9-SP)AM7640i (004-3479B-9-SP)AM5630i (004-3479C-9-SP)AM5640i (004-3479D-9-SP)3Fuser defective.Replace fuser.Fuser (015-0301-0)

Trouble Shooting StepCauseSolutionParts1Fuser out sensor failure or no rebound.Replace fuser out sensor.Fuser out sensor (008-0364-9-SP)2Main board defective.Relace main board MBA890.Main board:AM7630i (004-3479A-9-SP)AM7640i (004-3479B-9-SP)AM5630i (004-3479C-9-SP)AM5640i (004-3479D-9-SP)

Trouble Shooting StepCauseSolutionParts1Fuser out sensor failure or no rebound.Replace fuser out sensor.Fuser out sensor (008-0364-9-SP)2Main board defective.Relace the main board MBA890.Main board:AM7630i (004-3479A-9-SP)AM7640i (004-3479B-9-SP)AM5630i (004-3479C-9-SP)AM5640i (004-3479D-9-SP)

Trouble Shooting StepCauseSolutionParts1Duplex sensor defective.Replace duplex sensor.Duplex sensor (008-0364-9-SP)2Main board defective.Relace main board MBA890.Main board:AM7630i (004-3479A-9-SP)AM7640i (004-3479B-9-SP)AM5630i (004-3479C-9-SP)AM5640i (004-3479D-9-SP)

Trouble Shooting StepCauseSolutionParts1Duplex sensor broken.Replace duplex sensor.Duplex sensor (008-0364-9-SP)