View Full Version : Lines all over page on a bizhub c500
Albert
05-10-2011, 09:17 AM
97699768:confused: 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
05-10-2011, 09:36 AM
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
05-10-2011, 10:48 AM
try to replace the hv units that is in contact with the imaging units...maybe this would help
boanda
05-10-2011, 11:13 AM
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
05-10-2011, 11:54 AM
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.
I looks like the magenta corona needs to be replaced.
Albert
05-10-2011, 05:02 PM
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.
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05-10-2011, 05:07 PM
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lucky13
05-12-2011, 03:35 AM
what is your PM count on the drums, dev, and coronas to me it looks like bad corona and grid
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.
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