Step 2 ![](https://publications.lexmark.com/media/ids_assets/images/transparent.png) Remove the imaging unit. Warning—Potential Damage: Do not expose the imaging unit to direct light for more than 10 minutes. Extended exposure to light may cause print quality problems. Warning—Potential Damage: Do not touch the photoconductor drum under the imaging unit. Doing so may affect the quality of future print jobs. ![](https://publications.lexmark.com/media/ids_assets/images/transparent.png) Remove any packing material that is stuck on the imaging unit. Note: Make sure to remove any obstruction between the charge roller and photoconductor drum. ![](https://publications.lexmark.com/media/ids_assets/images/transparent.png) Insert the imaging unit. ![](https://publications.lexmark.com/media/ids_assets/images/transparent.png) Print the document.
Do vertical dark streaks with missing images appear on prints? | Contact customer support. | The problem is solved. |