6 - 16. TROUBLESHOOTING PROCEDURES6.1 Troubleshooting Tips(1) Check the basic check points written in the user’s manual.(2) Gather detailed failure information as much as possible from the customer.(3) Check the printer under the condition close to that under which the failure occurred.6.2 Check Points Before Correcting Image Problems(1) Is the printer running in proper ambient conditions?(2) Are consumables (toner and EP unit) replaced correctly?(3) Are sheets of paper normal?(4) Is the EP unit set correctly?6.3 Notes When Correcting Image Problems(1) Do not touch the surface of the OPC drum nor place foreign matter on it.(2) Do not expose the OPC drum to direct sunlight.(3) Do not touch the fuser because it heats up during operation.(4) Do not expose the image drum to light for more than five minutes at room temperature.6.4 Preparation Before Troubleshooting(1) Message displayThe failure status of the OKIPAGE 4w plus /4m is displayed on the status monitor of the PC.Take proper action according to the message displayed on the status monitor.(2) LED displayThe OKIPAGE 4w plus /4m is equipped with only one LED. This LED indicates one of thefollowing statuss:Printer Status LED IndicationReady LightingPrinting in progress Blink (*1)Recoverable alarm Blink (*2)Unrecoverable alarm Blink (*3)*1:*2:*3:The LED blinks at a cycle of 1 second (0.5s ON)from data reception to printing end.The LED blinks at a cycle of 0.24 second (0.12s ON).The LED blinks at a cycle of 0.24 second (0.12s ON).