CS-300i with quality issue after pm

[Guest]

Installed PM now have uneven density, front to back on everything, including internal prints. Image faded so bad, cannot run U410 successfully. Tried U021 to reset any bias that may be off, no help. Ran without charger, still not even toner across page. Tried putting old parts back in, still same issue. Put paper in front of LSU with covers off, looks like even laser across full length, no abnormal sounds from polygon motor. Stopped in mid print of sky shot, can see uneven coverage on drum, dev mag roller looks to have even coverage. Checked all ground points, all seem to be working properly. Suggestions?1594-300i-uneven density post pm.pdf

[subaro]

Re: CS-300i with quality issue after pm

Seems like you have a secondary transfer issue. remove the transfer roller and check the springs are in place and it is sitting properly. also double check the transfer belt installation.

[blackcat4866]

Re: CS-300i with quality issue after pm

... Stopped in mid print of sky shot, can see uneven coverage on drum, dev mag roller looks to have even coverage. ... [ATTACH]30304[/ATTACH]

Seems like you have a secondary transfer issue. remove the transfer roller and check the springs are in place and it is sitting properly. also double check the transfer belt installation.

I'll have to disagree with you subaro. If the latent developed image is faint at the front, that means it's happening before transfer. And there is no secondary transfer. The CS-300i has only primary transfer, no belt.

Installed PM now have uneven density, front to back on everything, including internal prints. Image faded so bad, cannot run U410 successfully. Tried U021 to reset any bias that may be off, no help. Ran without charger, still not even toner across page. Tried putting old parts back in, still same issue. Put paper in front of LSU with covers off, looks like even laser across full length, no abnormal sounds from polygon motor. Stopped in mid print of sky shot, can see uneven coverage on drum, dev mag roller looks to have even coverage. Checked all ground points, all seem to be working properly. Suggestions?[ATTACH]30304[/ATTACH]

This machine is a cousin to the CS-2560/3060 Stratos and FalconII, both of which you'll have difficulty getting that primary charger installed just right. If the developing brush looks even, you've got it narrowed down to just a few things:

1) the primary charge may not be latching down at the front.
2) the grid is on there incorrectly.
3) the primary charge contact is arcing, as seen on other Stratos. Look for blackened marks on the contact.
4) the spacing between the developing unit and drum is uneven.
5) did you run out of toner during U130? If the first cartridge was OEM, then the second cartridge was Generic, you might be seeing the difference in quality between good toner at the back, and crappy toner at the front.

That's about all I've got on short notice. =^..^=

[subaro]

Re: CS-300i with quality issue after pm

[QUOTE=blackcat4866;485276]I'll have to disagree with you subaro. If the latent developed image is faint at the front, that means it's happening before transfer. And there is no secondary transfer. The CS-300i has only primary transfer, no belt.

Master of obvious. my hat is off. you are correct in your observation. I kept thinking of the TA 300ci, don't know why but i did.
However, have seen many times where because of poor transfer roller where one of the springs were missing, would give you that same symptoms. Yeh, i have seen also new charge grid produce print quality issues.

Did you put back the old transfer roller back in.[try that first] also and then old charge grid. was the machine doing this before pm kit. as cat said from service mode run 130 and check quality. if all fails then you have a high voltage pwb problem or [ most unlikely] engine pwb problem.

[jmaister]

Re: CS-300i with quality issue after pm

did you shorted something?

or the new parts shorted something? I'd put the old parts back and isolate the issue from there.

[copydocinc]

Re: CS-300i with quality issue after pm

You might double check to see if the developer unit is moving equally up to the drum unit as you push in the bracket to lock it into place.
It might be easier to see this if the drum unit is left out, but it might somehow be the drum unit blocking the smooth left to right movement of the developer unit.

[monstott2010]

Re: CS-300i with quality issue after pm

Given the responses I got from all you guys, thanks by the way, I don't feel so bad... I tried them all, even looking at the transfer roller until I realized that the drum coverage was bad... All OEM toner, and it filled just fine, nice even coat on the dev roller....

That said, after about 7 hours pounding my head against the wall, I finally realized something... The drum has TWO ground contacts, one for the charger (flexible) and one for the drum itself (solid)... the drum (solid) ground contact is simply a two prong plate extending from the machine frame. The prongs had not been making good contact. I remembered when I pulled the old drum, it didn't want to release at first, I believe the ground may have been stuck, and in separation, had very slightly altered the prongs so the new ground plate on the new drum was not making good contact... I slightly bent the plate to increase contact to the prongs and presto- problem resolved..... long story short, grounding issue......

[blackcat4866]

Re: CS-300i with quality issue after pm

Congratulations on your success. =^..^=