Dark streak check

Issue description

Dark streak in the direction of how the paper was loaded in the tray.

Sample image with a dark streak on the print:

Solution

Note:  Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to Settings > Troubleshooting > Print Quality Test Pages.

Try one or more of the following:

• 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 control panel, navigate to Settings > Paper > Tray Configuration > Paper Size/Type.
• Load paper from a fresh package.

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

• Remove, then insert the black imaging unit.


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

   Notes:

   • 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.

If the issue persists, then contact customer support.