Ink discoloration, also known as stagnant ink, is possible on printers with low print volumes or if there are very long periods of time between print jobs while the printer is powered on. Over time, the heat from the printhead can cause the ink pigment to change color.
To check for ink discoloration due to these causes, perform the "crayon test":
- Print the Light Stripes Test page.
- Press the [Up] or [Down] arrow button on the Control Panel to select [Troubleshooting] on the Display Screen, and then press the [OK] button.
- Press the [Up] or [Down] arrow button to select [Print Quality Problems], and then press the [OK] button.
- Press the [Up] or [Down] arrow button to select [Eliminate Light Stripes], and then press the [OK] button.
- Press the [Up] or [Down] arrow button to select [Light Stripes Test Page], and then press the [OK] button.
- Evaluate the Light Stripes Test page for missing printhead jets, such as missing Cyan, Magenta, Yellow or Black color bars, and evidence of inconsistent colors. Ink stagnation will cause a uniform color change across a printed color section. If there are missing jets, or there is evidence of mixing colors that do not appear uniform, refer to the Related Content for addition troubleshooting information.
- With a stick of each color, draw a heavy mark on the Light Stripes Test Page next to the matching color. If the color of the ink stick mark matches the color printed on the test page, the ink discoloration is not due to ink stagnation and is likely due to a software issue or print quality mode setting.