HP LaserJet Pro MFP M125nw

Print is light or faded.

Cause	Solution
The paper might not meet HP specifications.	Use paper that meets HP specifications.
The toner cartridge might be defective or low. If you use a non-HP toner cartridge, no messages appear on the product control panel	Replace the toner cartridge. If the toner cartridge is not low or empty, inspect the toner roller to see if the roller is damaged. If it is, replace the toner cartridge.
If the whole page is light, the print density adjustment is too light or EconoMode might be turned on.	Adjust the print density, and disable EconoMode in the print driver.

Toner specks appear

Cause	Solution
The paper might not meet HP specifications.	Use paper that meets HP specifications.
The paper path might need cleaning.	Clean the paper path.

Dropouts appear.

Cause	Solution
A single sheet of paper might be defective.	Try reprinting the job.
The moisture content of the paper is uneven or the paper has moist spots on its surface.	Try different paper, such as high-quality paper that is intended for laser printers.
The paper lot is flawed. The manufacturing processes can cause some areas to reject toner.	Try different paper, such as high-quality paper that is intended for laser printers.
The toner cartridge might be defective or low.	Replace the toner cartridge.

Vertical streaks or bands appear on the page.

Cause	Solution
The toner cartridge might be defective.	Replace the toner cartridge.