MX6070N ghosting on black / lines

[hellcat]

Have a MX6070N that has about 40K black 20K color, attached is examples of image. the 3rd image actually has streaks across it but did not scan in well.

The image especially on the bottom is ghosting or streaking across the page only on black. It doesn't do this on any other single color pattern. It only does this on the first 1-3 sheets then is normal until your make another copy or print.

Things that have been done.

New black Developer, New Black DV unit, new black drum, new black maint/charge kit, new black drum unit, new primary xfer unit, I have tried to swap drum units around cyan/magenta to black no change. Nothing I have done has made any difference.

Any help or ideas on where to look would be appreciated.


Dropbox - 20200615_163403.pdf - Simplify your life

[driving lots of miles]

I just had a MX 3070 doing the same thing and it was the fuser not cleaning built up toner on the rollers. I was able to clean the fuser rollers and was good to go.

[tsbservice]

I would try another fuser. Yea I read it does it only on black but somehow looks like fuser marks.
Just a thought, I'm nowhere near to be Sharp specialist.

[JR2ALTA]

Definetly junky fusers....but make sure you customer didn't get tricked into buying pirated toner.

[hellcat]

Yea ended up being the primary fuser belt. Replaced it and seems to of fixed it. Weird issues lol.

[boutn]

old fusing belts on the N series are crappy...