Hp 4000/Horizontal Lines-2nd Try

[cucuklotz]

HI,
Drum develops thin horizontal lines about 1.5 inchs(some a little smaller,some a little longer) that are built up toner that is very hard to wipe off drum(you can if your careful and use a cloth and your nail to take them off.It happens over the course of a few 100 prints.The lines are generally on right side . ______
____
___________ These are sort of what they look like.I know this seems crazy,but thats whats happenning.
I tried different OEM cartridges and New transfer roller.
HELP. THANKS ANDY

[OMD-227]

Years ago, I was given an old HP LJ4000 and I used it at home. I was given about 10 refurb toners and some genuine HP toners along with it. I experienced the same fault when using the refurb toners quite often, and hardly ever on the genuine HP toners. After some research, I found that the generic refurb brand was only refilling the original toners, not replacing the drum cleaning blade or charge roller. The fault from what I could tell was caused by the old cleaning blade.
The problem you are having is usually a faulty toner cartridge. As the HP's are an all-in-one cartridge (drum, blade, dev, charge roller etc), there is alot that can and does go wrong.
I'd go and get a NEW genuine HP toner and see how you go.

[cucuklotz]

Hp 4000/ Horizontal lines

Hi,
THE CARTRIDGES (3-4) ARE ALL OEM ,that the problem is happenning with.I agree that looking at it you would think its a blade problem,BUT IT IS NOT.,
THANK YOU , ANDY

[fixthecopier]

what you are saying sounds like the drum is being over charged or developing an electrical arc that is putting the line there. I would look closer at the contact points for the cartridge and transfer.

[cucuklotz]

Hp 4000/ horizontal lines

HI,
Thanks for reply,Im going back today and Ill check out what you suggested,
Thanks, ANDY