pulling developer

[Eduardo Andrade]

Hello boys!
I have a Pro C900 and it's pulling developer Yellow and I don't know more that I can to do by to resolve this problem!
Anybody can help me??

thanks, Eduardo

[Gamut]

Re: pulling developer

Start by letting us know what you have done so far!

[Eduardo Andrade]

[Gamut]

Re: pulling developer

Is the dev carry over one end or all over?

Check toner supply is working correctly, yellow toner pumps seem to fail first, if density is low it will pull dev not toner.

Check corona wire is not hooked up on cleaner, replace or swap charge corona with known good one,

Ensure lube bar is good, check end seals on dev unit are good.

Clean dev unit doc blade. Check gap is even and correct.

Gently reverse dev rolls to clear dev brush/coating, clean dev unit mag rolls ensure there is no dev adhered to rolls then turn in correct direction make sure dev coating is uniform.

Ensure PCDU is correctly located and drum knob tightened.

If these checks fail to resolve may be expensive dev unit replacement...... Good luck.

[Eduardo Andrade]

Re: pulling developer

Gamut, tanks for your help!!

The dev is carried over one, at external side. The drum is marked by developer and this point the developer be carried.
All parts, lube bar and seals are goods.
I cleaned the mag rools.
My Client use the machine whit density low, but only dev unit yellow is with a problem.

thanks and I hope that you help me at the and!!