Black ink smudges for color print mode only, not for grayscale
When printing in color mode I get a vertical line of black ink smudge on the left margin of the page.
I checked about cleaning toner spills inside the printer, ollowing the manual instructions. Everything looks very clean, as the printer has been in use only a couple of months.
What I don't understand is if I print in grayscale mode, the printing is very clean, no ink smudges on the page margin.
Then I return to color printing, and the problem with the black ink smudging re-appears.
I print another page in grayscale - no problem! But a color print after the clean grayscale printing comes out with more black ink smudges.
Is there a specific part of the printer's interior that I need to clean to fix this problem?
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Re: black ink smudges for color print mode only, not for...
- Try to reallign the cartridge, run a print test, after that if the issue still persist - uninstall and reinstall software - run test and re-allign again the cardtridge using software. run print test again.
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Are you using third party ink? make sure your ink is xerox OEM. This will clogg up the inkjets and ruin the print head for ever, If you have always used the third party ink then you might want to get a new print head. . If you have used xerox ink then It sounds like the magenta reservoir has spilled over the cyan. This is caused by moving the printer and not waiting for the cool down procedure. Also you might want to change the print head wiper. If the print head wiper is over used it won't clean the print head properly and what that causes is for ink to build up and causes smudge. also make sure the drum maintance kit is still in good shape. (its the yellow roller on the right side of the printer. Well hopefully this helps .
Very nice trouble shooting. The image defect you describe point to the OPC or drum unit this is essentially the toner cart. In your case black. Measureing the distance between repetitive defects is a sure way of diagnosing problems such as yours. Again nice work.
Google repetitive defect ruler for your model to help in the future.
It's likely that the foam pads that the print head rests on when the printer is not in use are saturated with ink. They're to the right as you look into the printer: a rectangular one for black ink and a square one for the colored ink. If you power the printer off and back on, with the cover open, you'll see where the printhead goes to rest.
The pads aren't easy to get at, but you can blot them with a paper towel. Gummy, half-dried ink dissolves in rubbing alcohol, and you can soak a paper towel or a cotton ball with alcohol and wipe down the area. I've had good luck soaking the pads with alcohol, then blotting them dry with a rag.
This is a very common problem with this model printer, it is caused by toner on the scanner mirrors. You need to clean the scanner assembly unfortunately it isn't very easy to dissemble the printer to get to it.