Vertical dark lines

Step 1

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 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 vertical dark lines appear on prints?

Go to step 2.

The problem is solved.

Step 2

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 vertical dark lines appear on prints?

Go to step 3.

The problem is solved.

Step 3

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

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



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



3. Print the document.

Do vertical dark lines appear on prints?

Contact customer support.

The problem is solved.