Step 1  Depending on your operating system, specify the paper type from the Printing Preferences or Print dialog. Notes: - Make sure that the setting matches the paper loaded.
- You can also change the setting on the printer control panel. Navigate to Settings > Paper > Tray Configuration > Paper Size/Type.
 Print the document.
Do dark lines appear on prints? | Go to step 2. | The problem is solved. |
Step 2  Load paper from a fresh package. Note: Paper absorbs moisture due to high humidity. Store paper in its original wrapper until you use it.  Print the document.
Do dark lines appear on prints? | Go to step 3. | The problem is solved. |
Step 3  Open the front door, and then firmly push it down.  Pull out the print cartridge tray.  Remove, and then insert the print cartridges.  Insert the print cartridge tray, and then close the door.  Print the document.
Do dark lines appear on prints? | Go to step 4. | The problem is solved. |
Step 4  Perform Color Adjust. From the control panel, navigate to: Settings > Print > Quality > Advanced Imaging > Color Adjust  Print the document.
Do dark lines appear on prints? | Contact customer support. | The problem is solved. |