eStudio 850 large spot

[mrfuser]

Okay, changed drum, blade, transfer belt, cleaned everything. Run less than 10 and it is great, 10+ and you get a smudge on op side, trail edge corner of the page. Copy or print is same result.

Any ideas?

Thanks

Kelly

[YouthAttack]

did you take out and clean that laser glass? theirs like a plastic holder that comes out holding the glass. usually toner mists on those things and come out as "smudges" on the print outs.

[Mr Spock]

Check the developer unit seals.

[ToshibaTech]

Fuser?

[mrfuser]

Ok. It is NOT the fuser, and it ONLY occurs after 10 pages pass. It also ONLY shows up on op side trail corner.

Thanks

Kelly

[jonezy999]

Theres not a piece of paper stuck above the drum unit is there? I have seen these boxes pass paper no worries with a whole sheet of A4 stuck up there, cause smudges on the back.

[tinnyjay]

Okay, changed drum, blade, transfer belt, cleaned everything. Run less than 10 and it is great, 10+ and you get a smudge on op side, trail edge corner of the page. Copy or print is same result.

Any ideas?

Thanks

Kelly

Check Developer Unit.

[ToshibaTech]

Perhaps a dumb question but did you release the drum blade? There is a white plastic knob that turns against the drum blade assy on the front of the process unit and takes it off the drum. If the cleaning brush inside the cleaner unit is good it will still clean a lot of the time but get a smudge everynow and then. Also if that cleaner brush is hardened with toner it needs to be replaced because it will cause smudges/toner dropping.

[mrfuser]

Okay, if I run 1 (one) copy, they look great! Run 10 or more and the smudge shows up. More on legal than letter. Smudge is only on the corner trail edge of the page, happens before the fuser. Any thoughts?

Thanks

Kelly

[me_the_noob]

Did you check the discharge LED? Are they clean or off?

I`ve got the same problem with an e-studio 810, but that smudge appeared on the backside of the copy and became darker with each copy in a series. i solved this by changing the developer and performed an auto toner adjustment

[emujo]

I think "the noob" is on the right track. Drum is not discharging properly between copies. Did you reset all counters for consumable items you changed? Run 05/200 and 280? CAn you visually see the discharge lamps (all of them) on in test mode? Possibly a defective drum. Emujo

[mrfuser]

Again, please read carefully. 1 thru 8 or 9 copies are perfect, then 10 on start the smudge. Always in the same place on OP Side trail corner, more pronounced on legal than letter. Yes I changed/cleared settings for PM procedures. I don't see how a defective lamp or drum would cause this since it only happens after a certain amount of pages, but anything is possible I suppose. Has anyone had any success in cleaning the drums are changing the bias on DV and/or drums to compensate?

Thanks

Kelly

[me_the_noob]

You should post a scan of a copy with that smudge on it, to see exactly how it looks...maybe then we`ll have other ideas.

Another thought (although sounds like SF): maybe during printing, the magnetic roller from DU charges too much in that portion, at a specific time of proces....in this case I think the magnetic roller is oxidised/dirty (and you should clean it with a scotch brite) or the developer unit is not positioned corectly (or developer-toner mixture is not distributed correctly). I hope you understand what I mean.

[toshibadale]

Had the same thing last year. Did a PM and after doing it this occured. Found the drum blade had a small cup on on side letting toner build up after 10 to 15 copies. Changed blade and it was gone!

[ivovb]

Okay, if I run 1 (one) copy, they look great! Run 10 or more and the smudge shows up. More on legal than letter. Smudge is only on the corner trail edge of the page, happens before the fuser. Any thoughts?

Thanks

Kelly

When You change drum and transfer belt did You change corrensponding cleaning brushes? At least clean them well with vacuum cleaner to see if there is any difference.

BR