Symptoms
- Prints have streaks or lines across the page
- Colors are faded, wrong, or missing entirely
- Text or images smudge when touched
- Print quality was fine before and degraded gradually
Likely causes
- CommonLow or empty ink/toner cartridgeFading and streaking commonly start well before a cartridge is fully empty.
- CommonClogged print head nozzles (inkjet)Ink can dry and clog nozzles, especially if the printer sits unused for a while.
- PossibleWrong paper type or print quality settingUsing plain paper settings for photo paper (or vice versa) affects ink absorption and quality.
- PossibleDirty or worn transfer components (laser printers)Toner residue or a worn drum can cause streaks and spots on laser prints.
- Less commonOld or counterfeit ink/toner cartridgeOff-brand or old refilled cartridges can cause inconsistent output.
What to do
- Check the printer's ink or toner levels through its screen or the computer's printer software.
- Run the printer's built-in print head cleaning cycle from its maintenance menu (usually under Settings or Maintenance).
- Print a nozzle check pattern to see which colors are clogged or missing.
- Replace any cartridge that's low, expired, or has been sitting unused for a long time.
- Make sure the correct paper type and quality settings are selected in the print dialog before printing.
- For laser printers, gently remove and reseat the toner cartridge, rocking it side to side to redistribute toner.
- If streaking continues after cleaning cycles and fresh cartridges, check for a dirty print head or drum that may need manual cleaning per the manual.
Tools and parts
- Lint-free cloth
Replacement ink or toner cartridgeSearch: “ink cartridge for [printer model]”
When to call a pro
If cleaning cycles and fresh cartridges don't fix persistent streaks or lines, a technician can check for a failing print head or drum that needs replacement.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.