I had white lines in all dark areas. I've tried every step of servicing the printer, including a quick and thorough cleaning of the printhead, etc. The last attempt revealed that the problem was with the ink cartridge and it needed to be replaced. I replaced it with the second one in the order and it worked fine. Too bad I didn't use 1 much and had to throw it in the trash.
HP 902XL Magenta Ink Cartridge for π¨οΈ HP OfficeJet 6900 & Pro 6900 Series, T6M06AN
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H&BO TOPMAE Remanufactured Ink Cartridges Replacement for HP 61XL 61 XL β Envy 4500 5530 5535 Deskjet 1000 1056 1510 1512 1010 1055 OfficeJet 2620 4630 Printer (1 Black 1 Tri-Color) - Enhanced SEO
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Get Quality Prints with HP 78A/CE278D Toner-Cartridges for LaserJet Pro M1536 and MFP P1606
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Brother TN436BK Super High Yield Toner, Black - Retail Packaging
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