Km c452 fade black zone in center of page...

[Rvale]

did you cleaned the charge wire? just seeing two possibilities there, charge corona, specially the grid and dev unit. check the charge for dust and be carefull not to touch the grid/wire parts with your finger.

[copier addict]

did you cleaned the charge wire? just seeing two possibilities there, charge corona, specially the grid and dev unit. check the charge for dust and be carefull not to touch the grid/wire parts with your finger.

Dirty charge would produce dark lines, not lighter lines.

[Canonier]

update.
i removed the black drum and cleaned from the outside the miror locatet inside the drum not perfeclty because it has a very small gap to the side and i used a small tab to reach it.
the result if far better so i will try to open it and to the cleaning correct.

i will keep you informed.