Canon ir3300 - specks on copies

[kuby]

Have a ir3300 that is making specks on the copies. Have replaced transfer roller, developing unit, drum unit, cleaned all optics, clean laser, changed paper, replaced fuser, switched plugs on the wall and still specks on the copies.

What am I missing guys? Lots of white spots across the page.

Thanks

[ameritech]

Wow, that should of taken care of the specks. Have you tried to make a copy and stop it right before the fuser unit, to see if its the fuser unit or before the fuser. The only thing I can think of is the paper is
picking it up from somewhere in the paper path. or possibly its leaking from the developer unit. I know you already replace all those units. Good luck.

[kuby]

I just did a copy and stopped it below the drum. The white spots are showing up on the black image on the drum. It is not the fuser. Something in the charging?

[D_L_P]

Can you provide a sample copy?
I agree, replacing the drum and developer usually fixes most copy quality issues. Next I'd look at dev bias contacts, pull out the drum and developer and clean the drum cavity and all the contacts in the rear. Check that the transfer bed is lifting properly. Last I'd swap the HV power supply.

[kuby]

I did a internal print #6 (all black) and the specks are there?

[kuby]

Did a Toner-S and made it stir the toner and the spots are gone, but after making copies it always comes back.

[teckat]

Did a Toner-S and made it stir the toner and the spots are gone, but after making copies it always comes back.

may be a bias issue/ or grounding issue

[axyun]

Perhaps some kind of toner contamination as it went away temporarily after stir. Frank/AP

[andy21557]

i would try to carefully clean the rubber primary charge roller damp cloth with water only .... clean dry roll .... clean dry roll ..... clean dry roll till you get the whole roller done .... looks like drum powder on the primary roller is it a new canon drum or 3rd party supplier ?

[kuby]

Did the ccd-adj and it seems to be OK. Will let you know.

Thanks

[davidj7]

clean out the developer assembly of any toner . then add new toner it could just be paper dust.

[christopher]

I read where you changed the developer unit my question is are they using generic toner? And did the unit you changed have generic toner? I had this problem one time and determined it was the generic toner which I have used for years but could of gotten a bad batch.

Just a thought.

[kuby]

No generic toner. And the same exact specks showed up with the different developing unit.
Thanks

[Desert Rat]

Kuby,
I know that sometimes I over look the lint thingy that collects lint from the registration roller. Everytime I pull it out I get a lot of little white spots on the
first few copies. May be it is time to remove the mylar and vac the registration roller. That may account for the spots on the drum also. And doing
a toner stir just puts more toner on the dv roller and the lint probably gets buried untill the excess is depleated.
Just another straw to grab

Good luck

DR

[srv]

I just did a copy and stopped it below the drum. The white spots are showing up on the black image on the drum. It is not the fuser. Something in the charging?

Just a thought, because I wouldn't have a huge amount of experience on these m/cs but what about looking at paper dust in reg area or even before ..If the customer is using poor quality paper and that area isn't being cleaned paper dust can pollute the m/c.