CHAPTER 8 WHEN A PROBLEM OCCURS8-78-14-17-16-94-26-93-53-13. TroubleshootingIf trouble occurs, carry out the applicable checks and actions given below. If the trouble persists, contact your service representative.Trouble Checks Action PageNothing lights on theoperation panel when themain switch is turned ON.Is the power plug connected to an ACoutlet?Connect the plug to an AC outlet.No copies come out whenthe Start key is pressed.Is there any message appearing on themesssage display?Perform the corrective action correspondingto the messsage.Copies come out blank. Are the originals set correctly? When setting originals on the platen, placethem face-down.When setting originals in the optional DF,place them face-up.Copies come out too light. Is the copier in the auto exposure mode? To change the overall exposure, perform theauto exposure adjustment.Is the copier in the manual exposure mode? Adjust the exposure to the correct degreeusing the copy exposure adjustment keys.To change the overall exposure, perform theexposure adjustment for the each copyquality mode.Is the add toner message displayed? Replace the toner cartridge.Is paper wet? Replace the paper with new paper.