SOLVING PROBLEMS 7.277InvalidImaging UnitAn invalid imaging unitis installed.Only install a Samsung-approvedimaging unit, designed for yourprinter. If you have installed anapproved imaging unit and thiserror still occurs, contact anauthorized service agent.Invalid NewToner[Color]An invalid new tonercartridge is installed.Only install a Samsung-approvedtoner cartridge, designed for yourprinter. If you have installed anapproved toner cartridge and thiserror still occurs, contact anauthorized service agent.Invalid Toner[Color]An invalid tonercartridge is installed.Only install a Samsung-approvedtoner cartridge, designed for yourprinter. If you have installed anapproved toner cartridge and thiserror still occurs, contact anauthorized service agent.InvalidTransfer BeltAn invalid transfer beltis installed.Only install a Samsung-approvedtransfer belt, designed for yourprinter. If you have installed anapproved transfer belt and thiserror still occurs, contact anauthorized service agent.Jam0 In Tray1Jam0 In Tray2Jam0 In MP trayA paper jam hasoccurred from theindicated tray.Remove the jammed paper fromthe corresponding tray, referring topage 7.8.JamIn Duplex PathA paper jam hasoccurred while printingon both sides of thepaper.Remove the jammed paper fromthe printer, referring to page 7.14.JamIn Exit AreaA paper jam hasoccurred in the paperexit area.Remove the jammed paper fromthe printer, referring to page 7.11.JamInside PrinterA paper jam hasoccurred inside theprinter.Open the right cover and removethe jammed paper from theprinter, referring to page 7.10.Lever UnlockingErrorAfter installing thetransfer belt, the locklevers is not locked.Push the lock levers on each sideaway from you, referring topage 6.27.Message Status Do this...