Lines all over page on a bizhub c500

[Albert]

lines all over page.jpglines.jpg I need help. I am printing booklets and get lines all over pages specially on pictures.

When print single colors I get lines on yellow and Cyan. I cleaned the Corona wires, the sensors, I switch a developer unit from another machine, switch drums and coronas and didn't help. Please look at the images i uploaded, If you have any sugestions to help isolate this problem please let me know. Cheers.

[Zeldaman]

Hi there!
I think the Magenta-imaging-unit is gone. You should try another one ( if possible).Make printouts "halftone-pattern" with a value of ca. 125. Then you should see which unit(s) cause the problem.
Greetings...

[marlon29]

try to replace the hv units that is in contact with the imaging units...maybe this would help

[boanda]

Replace units or clean corona wires(it easier if u dont have other units) then try to replace PH places to see is there any change on image (eg. exchange cyan and magenta PH)

[Zesti]

Albert,
Which toner are you using and when did you replaced toner? Also tell me if the toner is scattering around drum and dev. unit especially Magenta.

[seeb]

I looks like the magenta corona needs to be replaced.

[Albert]

Hi everyone, and thank you

I will be at the shop laiter on and try yours sugestions, and let you know how this ends, do you guys think is a good idea to change the magenta
Drum potential sensor board.

[JustManuals]

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[lucky13]

what is your PM count on the drums, dev, and coronas to me it looks like bad corona and grid

[JSC]

Had this type of fault many times, It is always ether carona assy or dev. I would change the carona assy as a whole part 1st.