Hi,
I install one 2018d with a new pcu and after 60k copies client call me becouse copy was coming out with black line.
since i havent a new complete image unit i change the drum, cleaning blade, developer and all gears, the machine works fine for about 5 days. after that in all printers and copys a grey line start apears on the back of the copy. i change the transfer roller but still having the same problem. the tonner is original.
what can be wrong with this unit?
thanks.
I install one 2018d with a new pcu and after 60k copies client call me becouse copy was coming out with black line.
since i havent a new complete image unit i change the drum, cleaning blade, developer and all gears, the machine works fine for about 5 days. after that in all printers and copys a grey line start apears on the back of the copy. i change the transfer roller but still having the same problem. the tonner is original.
what can be wrong with this unit?
thanks.
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