There are a few potential causes for streaks on prints:

1. Incorrect settings: If your model settings are set too low, it can cause poor print resolution and streaks.
2. Expired or clogged ink: If your printer’s ink cartridges are either expired or clogged, it can lead to a poor print quality and streaks.
3. Contaminated ink: If the ink has been exposed to dirt, dust, or other contaminants, it can lead to streaks.
4. Incorrect paper: Using the wrong type of paper can cause streaks or a poor print quality.
5. Misaligned ink cartridges: If the ink cartridges are misaligned, they can create streaks in a print.
6. Failed printhead: A failed printhead can cause streaks or a poor print quality.