Vertical dark lines or streaks; Step 1; Step 2- Page 112

Action

Yes

No

Replace the imaging unit or imaging kit, and then resend the print
job.

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.

Is the print density uneven?

Contact 

customer

support

.

The problem is
solved.

Vertical dark lines or streaks

ABCDE
ABCDE
ABCDE

Leading edge

Trailing edge

Action

Yes

No

Step 1

a

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.

b

Resend the print job.

Do vertical dark lines or streaks still appear on prints?

Go to step 2.

The problem is
solved.

Step 2

a

Load paper from a fresh package.

Note: 

Paper absorbs moisture due to high humidity. Store

paper in its original wrapper until you use it.

b

Resend the print job.

Do vertical dark lines or streaks still appear on prints?

Go to step 3.

The problem is
solved.

Troubleshooting

112