Image Problem: Vertical Lines.
Trouble Shooting StepsCauseSolutionParts1Toner cartridge lifetime ends.Replace the toner cartridge. <Video Link>Toner (015-0292-22)2Scratches or dirt on the fuser.Replace the fuser.Fuser AM4XA(002-B209-0-SP)AM4XA plus(002-C123-0-SP)3LPH defective.Replace the LPH unit.LPH unit AM40A\AM40A Plus\AM40Q(002-B377-0-SP)AM43A Plus(002-B925-0-SP)