Where the black line being left when after the drum or before the fuser THe hot part. make a copy and stop the machine so the paper is in the middle catch it before it goes into the hot part are the lines there? be careful the toner will not be fuse your hand will smear the toner, if the lines are there you need to replace the cleaning blade and maybe the drum and get the image unit that houses the drum might need to be cleaned.
if no lines then the fuser is putting the lines on the copy replace the upper and lower fuser rollers and cleaning roller next to the lower fuser roller.
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SOURCE: Konica Minolta EP2010 CSPRO pages copy with black lines at top
you must change the drum, or cartridge.
SOURCE: I have a Minolta cs pro 2080 copier, shading on copies
3 possible causes:
1) The optics are dirty thus making your copy darker. The test for this is to manually lighten the copy using the exposure control on the panel of your copier. Lighten the copy several positions and see if the copy gets better. If it does then the optics need to be cleaned.
2) The copier is overtoned. This means that the toner to developer concentration is to high. This will require a trained technician to lower the toner ratio and then recalibrate the toner/developer ration using the F8 mode.
3) If the shading gets much worse as you run say 10 copies in a row then the drum cleaning blade would be the cause. So run 10 copies of something and compare the first copy out with the tenth copy out. Do you see a dramatic difference in the amount of background or "shading"?
Good Luck and thank you for using Fixya.
SOURCE: Hi my bizhub Di3510f copier is making copies and
Sounds like your cleaning blade & drum. First try to clean the glass(small ruler size & large one) and if that doesn't work you will need to replace the drum & blade.
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