Step 1 ![](https://publications.lexmark.com/media/ids_assets/images/transparent.png) Remove, and then reinstall the imaging unit or imaging kit. Warning—Potential Damage: Do not expose the imaging unit or imaging kit to direct light for more than 10 minutes. Extended exposure to light can cause print quality problems. Warning—Potential Damage: To avoid damage, do not touch the underside of the imaging unit or imaging kit. ![](https://publications.lexmark.com/media/ids_assets/images/transparent.png) Resend the print job.
Do vertical dark lines or streaks still appear on prints? | Contact customer support. | The problem is solved. |