Cleaning the corona wire
If you have print quality problems, clean the corona wire as follows:
a Turn off the machine. Disconnect all cables, and then unplug the power cord from the electrical socket.
b Open the front cover and slowly take out the drum unit and toner cartridge assembly.
c Clean the corona wire inside the drum unit by gently sliding the blue tab from right to left and left to right several times.
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IMPORTANT
•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.
Note
Be sure to return the blue tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe.
d Put the drum unit and toner cartridge assembly back in the machine.
e Close the front cover.
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