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I've noticed a background in my color prints that I can't tell what color it is; it looks like a mix of colors.
I've tried replacing various parts, including drums and drums, but it seems that when I get to a certain number of copies,
it starts to form this background. I've noticed this problem in many Cxx0i series copiers. I think it's a known issue...
I also tried replacing the power board, but that didn't help.
in bw prints it prints perfectly
Has anyone figured out how to fix it?
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I'm trying to upload an image, but it's not very visible.
You can see it by comparing a blank sheet of paper with a printed one. I don't think it's caused by non-original toners or drums.
I've also noticed it in a Konica printer with very few copies. It seems to increase with wear,
but even replacing the components with new ones doesn't fix it.
Put everything original and brand new. The problem will ho away.
Good answer from a technician.
Do you have any idea how much 4 developer cartridges and 4 drums cost?
Even if we scrap the copier, the problem will go away.
Thanks for the advice?
Good answer from a technician.
Do you have any idea how much 4 developer cartridges and 4 drums cost?
Even if we scrap the copier, the problem will go away.
Thanks for the advice
So you are using non OEM toner & drums ?
In CE mode you can change / adjust the background density set these to +5 it should help.
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If its increasing with wear i would check the charge rollers in drums, dirty ones cause background.
I've had similar issue with the c250i. It had about 320k copies. I suppose customers have been using only aftermarket toner and drums since new. It had a lot worse background. Changing settings and drums didn't work, it was actually worse. Since changing Developer and drum units for OEM wasn't worth it, we've agreed to repair those units. I've changed all the developer powder (I've used blank metallic powder and mixed it with the original toner, and yes, I'm aware that this is far from ideal solution), and refurbished the drums. After setting up the machine, the problem went away. It printed cleanly (OEM toners). However, the colors are not perfect, so it's a no-go for demanding customers.
And to be fair, after the repair, the copier did only 15k pages (ssd failure, and now it's at my place) but the quality of the image stayed the same.
Also, I've been given advice that applies to the c3350i (and similar a4 copiers) to check and lower the TCR level settings if background is visible (You can take out the transfer belt and wipe it with some white cloth to see what color is the problem)
Good answer from a technician.
Do you have any idea how much 4 developer cartridges and 4 drums cost?
Even if we scrap the copier, the problem will go away.
Thanks for the advice [/QUO
Try ebay . I have seen original drums for ?99 each and devs from Konica about ?72 each.
I've had this a few times before, speckled color all over the prints. HV unit was the fix. Check these two threads, I posted some samples. Stay away from aftermarket toners....that is the root of this problem.
I've had this a few times before, speckled color all over the prints. HV unit was the fix. Check these two threads, I posted some samples. Stay away from aftermarket toners....that is the root of this problem.
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