Trouble Shooting StepCauseSolutionParts1Develop unit usage remain lower than 10%This will not affect the printing quality. But please prepare to order a new develop unit .Develop unit (015-0204-21)

Trouble Shooting StepCauseSolutionParts1LAN pin deformation on main board(see below) or main board defective.Replace 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 StepCauseSolutionParts1LAN pin deformation on main board(see below) or main board defective.  Replace 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 StepCauseSolutionParts1Main board defective.Replace 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)2Pickup motor defective.Replace pickup & feeding assembly.Pickup & feeding assembly (002-7903-0-SP)

Trouble Shooting StepCauseSolutionParts1Fan defective.Replace fan.Fan (008-0360-9-SP)2Main board defective.Replace 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 StepCauseSolutionParts1LVPS (Low-Voltage Power Supply) defective.Replace LVPS.LVPS (005-3140-9-SP)3Fuser fan defective.Replace fan.Fan (008-0360-9-SP)5Main board defective.Replace 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 StepCauseSolutionParts1Fan defective.Replace the fan.Fan (008-0360-9-SP)2Main board defective.Replace 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 StepCauseSolutionParts1Pickup roller defective (2,3,4 tray).Replace pickup roller.Pickup roller (002-7897-0-SP)2Tray control board defective.Replace tray control broad MBA762.Tray control broad (004-2882-9-SP)