If you have cleaned the corona wire & still get the message it's probably dust around the sensor.
Take the drum out of the printer, remove the toner, put the drum itself immediately into a black bin bag (drums are sensitive to light and should not be exposed for more than a few moments at a time) then get a compressed air pump (the small electric DIY ones you can buy for your car tyres are ideal) and using the most suitable attachment (i.e. the one to blow up footballs or airbeds), keeping the drum in the opened bin bag (to catch the dust and minimise the light, blow all around the corona wire area, particularly at both ends where the contacts are and while you are at it you can blow the rest of the drum to remove excess dust etc.
That should cure your problem but if not, get a large hammer and have a bit of fun then go out and buy a new printer - the heatache isn't worth it !!
Dust on drum is an issue with the corona wire. Use the blue tab on top of the drum unit. Slide it back and forth 10+ times and this should correct your issue.
Good luck!
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I have the message, Dust on drum, remove and clean carona wire. I have cleaned the drum very carefully with a soft lint free cloth used for cleaning optical lenses, genbtly cleaned the corona wire using a non-flammable cleaner, and still I get the same message. I have a total of three drums and two of the three, when installed gives me the Dust on drum message.
Millions of times of the same problem...But I found that even though I just took the whole drum unit out of the printer, did nothing, and then put it back into the printer, it worked again. Even though it would happen after printing, like 10 pages.
I have the same probelm. What all needs cleaned when getting this message?
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