- 237 -7. TroubleshootingHorizontal Lines and Spots Appear PeriodicallyCause Solution ReferenceIf the intervals of lines or spots areapproximately 94 mm (3.7 inches), thegreen tube of the image drum isdamaged or dirty.Lightly wipe the image drum with asoft tissue paper.Replace the image drum if it isdamaged.Replacing the Image Drum(User's Manual)If the intervals of lines or spots areapproximately 30 mm (1.2 inches),there may be foreign objects in theimage drum.Open and close the output tray, andthen print again.-The image drum has been exposed tolight.Place the image drum back into themachine, and then do not use for afew hours. If the problem persists,replace the image drum.Replacing the Image Drum(User's Manual)The paper feed path is dirty. Print a few test copies. Copying (User's Manual)White Area on Paper is Lightly StainedCause Solution ReferenceThe paper has a static charge. Use paper stored under propertemperature and humidity conditions. Loading Paper (User's Manual)The paper is too thick. Use thinner paper. Loading Paper (User's Manual)The toner is low. If "Toner Low" or "Toner Empty"appears, replace the toner cartridge. Replacing the Toner Cartridges(User's Manual)
