Testing "Toner Pallet Check" or "Contamination Chk""Toner Pallet Check" and "Contamination Chk" are used to diagnose machine problems.On the Customer Mode menu, go down to TonerPalletCheck or ContaminationChk, and press .1.Toner PalletCheckAllows you to identify the problem with the toner when print quality problemsoccur while printing pictures or photos.ContaminationCheckAllows you to check for any regular lines or spots when printing if print qualityproblems are occurring.After you output the test results, contact Dell.Clear NVRAMYou can restore the original factory default menu settings by initializing NVRAM.Press Menu.1.Press until Configure appears, and then press .2.Press until Maintenance appears, and then press .3.Press until Reset Defaults appears, and then press .4.The Are you sure? message appears on the operator panel. Press .5.Turn off the printer, and then on again.OthersHow to replace Print cartridgesCAUTION: Before performing any of the following procedures, read and follow the safetyinstructions in your Owner's Manual.NOTICE: To protect the drums of the print cartridges against bright light, close the front cover within5 minutes. If the front cover remains open for more than 5 minutes, print quality may deteriorate.Dell print cartridges are available only through Dell. You can order more cartridges online athttp://www.dell.com/supplies or by phone. To order by phone, see your Owner's Manual.
