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- HP Community
- Printers
- Printer Ink Cartridges & Print Quality
- black vertical lines being seen on all prints being copied

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Check out our Black or Color Ink Not Printing, Other Print Quality Issues info about: Print quality and Cartridge Issues.
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2 REPLIES 2
02-14-2022 11:23 AM
Hi @priscilla13 ,
Here is a support article that may help you: HP LaserJet Pro MFP - Vertical Lines or Streaks When Copying or Scanning From the ADF | HP® Customer...
I am an HP employee.
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02-14-2022 08:15 PM
Vertical lines on prints that are a single distinct color like black are likely cartridge related. Muddy grey/brown stripes are likely an issue with the transfer belt. A common problem on this model is that the waste bin on the end of the transfer belt gets filled with toner that does not go into the waste toner bottle and it then gets pushed out onto the belt and spoils prints.
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