Alignment and TroubleshootingService Manual 4-13 Samsung Electronics4.2.1.1 Basic Check List1. Check the Power.• Check that the power switch is turned on.• Check that the power cable is plugged into the outlet and the printer.• Check the voltage of the power outlet.2. Check the LED of Panel.• Is there OPE LED ON?--> If not check power cable, switch SMPS or Main board.• Is the abnormal Lamp?--> Check the main PBA and cable harness.3. Check the Paper Path• Is there a Paper Jam?--> Remove any paper fragments caught in the paper path.• Paper Jam occurs repeatedly at a specific point in the Paper Path--> Open the fuser cover, Jam clear.--> Dismantle the machine and carefully inspect the region where the jam occurs.(Especially, check if paper fragments are caught in the Fuser4. Print the Information Page (Configuration).• Try printing a test page from a computer.--> If there is an error check cables and driver installation.5. Check the Print Quality.• Is there are a Print Quality Problem?--> Refer to section 4.2.56. Check consumables (toner etc.).• Using the keys print the Test Pattern.--> Expected life of various consumable parts, compare this with the figures printed and replace asrequired