what about the gears in the developing unit?
what about the gears in the developing unit?
I swaped a toner hopper from an other copier and now machine works fine (vivid black image) so the problem is at the toner hopper . I disassebled the old toner hopper cleaned it , mylar paddles are ok . But still has the problem . If i move the pin that opens a door to drop toner from toner hopper to drum unit , i noticed that too little toner drops. I cleaned the area behind that pin (i removed a foam becuase it was rotten) etc . But i had little improovement. Any idea?
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