A collegue of mine has the above machine asking to remove and shake the black toner. you do so and it works for 15 mins or so then come up with the same message. he has replaced a black drum unit last visit and it has come back in again. the toner was initially replaced to possibly cure the fault before he visited last time.
any ideas greatfully recieved.
cheers
any ideas greatfully recieved.
cheers
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