Faint toner, streaks or marks on laser prints

Check settings and use the pattern of the fault to identify the next useful step.

1 min read

Start with the simple checks

Print a built-in test or status page. Keep a sample showing the whole page, not just a cropped mark.
For an evenly faint page, check Toner Save or draft settings and the supply status. Follow your model’s instructions if redistributing toner is recommended.
Confirm the cartridge is seated and all specified shipping protection is removed.
On a Brother model with a corona-wire cleaning tab, use the documented cleaning procedure and return the tab to its marked home position. A tab left out of position can create a stripe.
If a line appears only on copies or scans, check the scanner-glass instructions rather than replacing toner immediately.

Avoid scraping rollers or opening the fuser. Persistent fuser or internal-mechanism faults need the printer manufacturer’s service procedure.

Technical references