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Printer Issue not printing 100% Saturation black

HP Recommended
HP Photosmart 6520
Microsoft Windows 10 (64-bit)



I have a hand-me-down HP Photosmart 6520 that used to print just fine, albeit in need of some ink. This year, I finally replaced the ink cartridges with genuine HP ink cartridges, and now the ink levels are reading at full for black, cyan, magenta, and yellow. However, when I print a quality diagnostic report, the text prints black but the black bars that should show up in the color blocks is blank. I've tried printing a test page at, and for some reason, the 100 percent color intensity (black) is lighter than the 20 percent color intensity. I also tried printing out a paper for school, and the title shows up just fine, but the text below seems to skip a lot of letters and the text appears grey. Maybe it could have an issue with PDFs? I thought this wouldn't be the issue but I thought id mention it regardless. Please help!

HP Support Agent
HP Support Agent
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Message 2 of 2
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HP Recommended



Welcome to the HP Support Community.


Are the copies in black coming out well?


Try the steps from here:


Let me know if this helps.


If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!




Have a great day!

I am an HP Employee

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