The printer is working, but colors in the printed output are missing, faded, or dull in comparison to the original. Check the paper to make sure you are using the correct paper type for the project. If the paper is too fibrous, the ink applied by the printer might not fully cover the print surface. Check Steps For HP Printer Ink Issue.
Make sure the printer is on and loaded with unused, plain, white paper.
Press and hold the Power button, then click the Cancel button once. Then release both buttons. The diagnostic page prints.
Identify which cartridge printed which part of the diagnostic page, so that if you find defects on the page, you know which cartridge is the problem.
However, you can install different combinations of ink cartridges in your printer, and different cartridge combinations print different diagnostic page patterns. The diagnostic page might not look exactly like the example presented here, but the right and left cartridges print in the same areas of the page no matter which cartridges are installed.
Look in the middle of the diagnostic page. The bars with “E” (for “empty”) and “F” (for “full”) at each end show the ink levels in the cartridges. As ink is used, the solid color changes to a faded color.
In general, if the printer and ink cartridges are working properly, the patterns (which look like grids of lines) should contain few or no missing lines. Also, the colors of the patterns and bars should be approximately the same as the color dots on the ink cartridge label.
Missing lines or streaked bars
If a pattern shows more than a few missing lines, or a bar is streaked, that ink cartridge is not functioning properly.
If the color of the patterns or bars is very different from the color dots on the cartridge label, the cartridge is not functioning properly.
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