C6500 different lines at the all colors

[GrayEminence]

Hi, I ran test pattern #53 with 120 density and I saw that there is a problem when I see light horizontal lines in the feed direction. I am adding a photo.
Drums and developers have been recently replaced.

Any tips?

Thank you!

5301153012

[blackcat4866]

And how did the primary charge units look? =^..^=

[GrayEminence]

And how did the primary charge units look? =^..^=


Did you mean charging coronas?

[tech51]

Did you mean charging coronas?
Either clean or (preferably) replace the coronas. Also make sure your transfer belt is in good condition.

[hinbox]

That is def. corona wires try replacing or clean with alcohol and microfiber towel. Blue paper towels might make it worse.

[GrayEminence]

Thank you all! I bought new coronas and the problem was solved!