338 11.MAINTENANCE2.Simple Troubleshooting (Cont.)11Display does not change when buttons or icons are pressedFunctions cannot be setImage density is too lowItem to be checked Countermeasure Reference pageIs the equipment in the energysaving mode (Automatic energysaving mode)?Press the [ENERGY SAVER] or[START] button on the controlpanel to clear the mode. (Ittakes a while for the equipmentto become ready.)P.37 “3.Energy Saving Mode”Is the power OFF because theweekly timer functions?Press the [START] button toreturn the power ON.See the [User Function Guide]When the use of the equipmentis managed under departmentmanagement, is the correctcode entered?Key in the correct departmentcode.P.30 “When department or usermanagement is used”When the use of the equipmentis managed under user man-agement, is the correct informa-tion entered?Enter the user information cor-rectly.P.30 “When department or usermanagement is used”Is the “Warming up” messagedisplayed?Wait until the equipmentbecomes ready.P.29 “Turning power on”Item to be checked Countermeasure Reference pageAre there functions that cannotbe combined set together?See the copying function combi-nation and image quality adjust-ment combination matrices andset again.P.349 “4.Copying FunctionCombination Matrix”Item to be checked Countermeasure Reference pageHas the message “Install newtoner cartridge” appeared on thescreen?Replace the toner cartridge. P.284 “Toner cover symbol”Is the image density or back-ground adjustment set lighterthan standard?Use the manual density buttonsor the background adjustmentfunction to adjust the imagedensity properly.P.117 “6.Copy Density Adjust-ment”, P.120 “1.BackgroundAdjustment”
