If you have print quality problems, clean the corona wire as follows:
Turn off the machine. Unplug the telephone line cord first, disconnect all cables, and then unplug the power cord from the electrical socket.
Open the front cover.
Slowly take out the drum unit and toner cartridge assembly.
We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner.
Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once.
To prevent damage to the machine caused by static electricity, DO NOT touch the electrodes shown in the illustration.
Clean the primary corona wire inside the drum unit by gently sliding the green tab from right to left and left to right several times.
Be sure to return the green tab to the home position (
. If you do not, printed pages may have a vertical stripe.
Put the drum unit and toner cartridge assembly back in the machine.
Close the front cover.
Plug the machine’s power cord back into the electrical socket first, and then reconnect all cables and telephone line cord. Turn on the machine.
To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations below.