Vertical dark lines or streaks

Step 1

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

   Notes:

   • Make sure that the settings match the paper loaded in the tray.
   • You can also change the settings on the printer control panel.


2. Print the document.

Do vertical dark lines or streaks still 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 or streaks still appear on prints?

Go to step 3.

The problem is solved.

Step 3

1. Inspect the test pages to determine which color is affected.



2. Remove, and then reinstall the photoconductor unit.

   Warning—Potential Damage:  Do not expose the photoconductor unit to direct light for more than one minute. Extended exposure to light can cause print quality problems.

   Warning—Potential Damage:  Do not touch the photoconductor drum. Doing so may affect the quality of future print jobs.



3. Print the document.

Do vertical dark lines or streaks still appear on prints?

Go to step 4.

The problem is solved.

Step 4

1. Clean the printhead lens.



2. Print the document.

Do vertical dark lines or streaks still appear on prints?

Go to step 5.

The problem is solved.

Step 5

1. Inspect the test pages to determine which color is affected.



2. Replace the photoconductor unit.



3. Print the document.

Do vertical dark lines or streaks still appear on prints?

Contact customer support.

The problem is solved.