iRC2550i black print in half tone

[Guest]

I was facing this technical issue. I had change the toner motor & new black drum but the problem still could not resolve. Anyone had been facing this problem before?

[victor_v]

Hi,

What for the device iRC2550? I from other region...
Anyway, it seems to me that developer units not densely adjoin to a drum. At me the similar picture turned out on iRC3100 (have forgotten to remove lateral shipping consolidation).
Scans 2 and 3... Obviously badly works cleaning blade. In this case on a copy can be anything you like.
I would eliminate at first these problems, and then already would operate on circumstances.

[Tricky]

The first picture looks like a problen with the charge roller in the black drum. There's quite a lot of conductive grease on the ends of the charge roller. I had a similar problem when replacing a drum, getting all this grease over my fingers and not thinking about it just reassembled the drum.

[mrfixit51]

First image problem could be caused by primary transfer roller in the ITB for black. Not secondary's because other colors unaffected. Last two pictures look like a black drum issue.

[D_L_P]

I agree with MrFixit, if you tried a new drum and had same issue look under the ITB belt and try a new drum for the 2nd and 3rd images. I have gotten bad ones right out of the box.

At first I thought the second and third image looked like when someone adds the wrong toner, but copiers nowadays are engineered to avoid that.