Cleaning the corona wires
If you have print quality problems or the Touchscreen shows Drum !, clean the corona wires as follows:
a Open the top cover until it locks in the open position.
b Remove the toner cartridge and drum unit assembly.
WARNING
HOT SURFACE
After you have just used the machine, some internal parts of the machine will be extremely hot. Wait for the machine to cool down before you touch the internal parts of the machine.
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