Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

[Copycrazy]

Hi

We own a bizhub c220 on our little familiar business on Spain. Some weeks ago we are noticing spots on some printings.

Attach image with the issue.

_DSC2265.jpg

What we know:

Happens at the end side of the paper
Only happens on recycled 220 grs cardboard. Normal 80grs paper prints perfect.
3 months ago this doesn't happen.
The problem only happen on blue and less intense, on black color.

Solutions we have try and doesn't work:

[Phil B.]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

Hi We own a bizhub c220 on our little familiar business on Spain. Some weeks ago we are noticing spots on some printings. Attach image with the issue.

[ATTACH=CONFIG]41622[/ATTACH]
What we know:
Happens at the end side of the paper
Only happens on recycled 220 grs cardboard. Normal 80grs paper prints perfect.
3 months ago this doesn't happen.
The problem only happen on blue and less intense, on black color.
Solutions we have try and doesn't work:

ok info needed:
total page counts
page counts on supplies
PM's done on time
OEM or generic toner/drums?

looks like developer issues.. but without the info we are pissing into the wind

[copyman]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

Looks to be fuser related. Have you ever run that paper before? Looks like not enough temp because stock too thick. Especially since you posted regular paper is fine.

[Copier Addict]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

I'm with copyman on this one. I have noticed the C220 series fusers become less efficient at fusing on thick paper as they age.

[Phil B.]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

Looks to be fuser related. Have you ever run that paper before? Looks like not enough temp because stock too thick. Especially since you posted regular paper is fine.

agree but he "said" he had slowed paper movement and boosted temp in fuser.. i guess i over looked the point of " Print " maybe he made adjustments on the unit and not in the driver?

but here again.. what did I have to ask for that he failed to give ?... the SOS.

[darry1322]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

From the images and the fact that it prints ok on lighter paper, my "guess" is that it's related to the secondary transfer.

There are some adjustments that can be made in service mode but I've had no luck in using these to improve second transfer on cardstock. It works or it doesn't.

I know you said this paper has worked before but maybe this batch has too much moisture and is bleeding off transfer voltage. Hard to be sure though.

[copyman]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

Weird I've worked on a lot of the C220 series and never had to make many adjustments. These machines are designed to practically adj themselves automatically. Keep in mind if you go into service modes etc and try to get machine to print on media not recommended then everything else you run will be off. Just not worth damaging the machine. You burn a fuser out you are looking at $600 or crash a color Dev unit(s) at $400+ each, etc.

[tsbservice]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

Looks to be fuser related. Have you ever run that paper before? Looks like not enough temp because stock too thick. Especially since you posted regular paper is fine.

Doubt about fuser if it happens only on blue and partly on black.
More looks like developer issue, as it's 1-2 colors related, or second transfer.
Does this issue is present on all paper sizes?

[Phil B.]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

Doubt about fuser if it happens only on blue and partly on black.
More looks like developer issue, as it's 1-2 colors related, or second transfer.
Does this issue is present on all paper sizes?

no just recycled cardboard? and just C&K.. i think i have stated drum - dev.. but still dont have age counts ... etc

[Phil B.]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

Looks to be fuser related. Have you ever run that paper before? Looks like not enough temp because stock too thick. Especially since you posted regular paper is fine.

why just two colors?
wouldn't fuser when printing single color sheets display SAME defect ( if true all OEM supply)

I go back to my drum/dev.. theory.. still lacking counts n such

[Copier Addict]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

why just two colors?
wouldn't fuser when printing single color sheets display SAME defect ( if true all OEM supply)

I go back to my drum/dev.. theory.. still lacking counts n such

Look at the pictures, there are quality issues on all four colours. That is why I suspect fuser.

[copyman]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

I also saw all colors. Not sure what else it could be besides fuser if regular prints are fine. How could a drum or dev unit be bad if reg pages are fine? This is very basic troubleshooting and simple logic, it's only happening on "cardstock" and everything else is fine then only logical solution is fuser!

[tsbservice]

[Albonline]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

look up starry nights effect . caused by humidity issues, boosting 2nd xfer may help, but best solution is fresh paper (dry) and humidity controlled environment.

[copyman]

Re: Problem Bizhub c220 white spots on recycled cardboard +PHOTOS

Again, looking into it too much. I hear the poster about starry effect, humidity, paper, etc but it is ONLY happening with "card stock". If it was happening with regular 20lb plain paper than of course look at other things causing it.

You can look at it this way, if the media is too thick the 2nd transfer roller charge just can't penetrate it so will be a weak charge with weak image transfer. I guess it could look similar to moisture in paper.