Horizontal dark lines

Step 1

1. Depending on your operating system, specify the paper source from the Printing Preferences or Print dialog.



2. Print the document.

Do horizontal dark lines appear on prints?

Go to step 2.

The problem is solved.

Step 2

1. Depending on your operating system, specify the paper type from the Printing Preferences or from Print dialog.

   Notes:

   • Make sure that the setting matches the paper loaded in the tray.
   • You can also change the setting on the printer control panel. From the home screen, touch Settings > Paper > Tray Configuration > Paper Size/Type.


2. Print the document.

Do horizontal dark lines appear on prints?

Go to step 3.

The problem is solved.

Step 3

1. Load paper from a fresh package.

   Note:  Paper absorbs moisture due to high humidity. Store paper in its original wrapper until you use it.



2. Print the document.

Do horizontal dark lines appear on prints?

Go to step 4.

The problem is solved.

Step 4

1. Remove the imaging kit, and then remove the imaging unit.

   Warning—Potential Damage:  Do not expose the imaging kit and 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 kit. Doing so may affect the quality of future print jobs.



2. Insert the imaging unit, and then insert the imaging kit.



3. Print the document.

Do horizontal dark lines appear on prints?

Contact customer support.

The problem is solved.