After toner replacement a sound . After some copies it askes for toner . If i open and close the front door some copies can be done and then asks for toner , and so on. I tried with 2 different types of compatible toners but the same. I refilled the old toner cartridge (and had no problem) with toner from the previous compatible toners, but the same (it makes some copies with sound appears too often and after some copies ask for toner replacement). Any idea?
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