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Lexmark XM7370

Lexmark XM7370

Vertical dark lines

Note:  Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to Settings > Troubleshooting > Print Quality Test Pages. For non-touch-screen printer models, press to navigate through the settings.

ActionYesNo

Step 1

Using a blank sheet of paper, make a two‑sided copy using the ADF.

Do vertical dark lines or streaks appear on prints?

Go to step 2.

Go to step 3.

Step 2

Using a damp, soft, lint-free cloth, wipe the following areas:

  • ADF glass pad (A) and ADF glass (B)
  • ADF glass (A) and ADF glass pad (B) in door E

Do vertical dark lines or streaks appear on prints?

Go to step 3.

The problem is solved.

Step 3

  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.
    • You can also change the setting on the printer control panel. Navigate to Settings > Paper > Tray Configuration > Paper Size/Type.
  2. Print the document.

Do vertical dark lines or streaks appear on prints?

Go to step 4.

The problem is solved.

Step 4

  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 appear on prints?

Go to step 5.

The problem is solved.

Step 5

  1. Remove, and then insert the imaging kit.

    Warning—Potential Damage:  Do not expose the imaging kit to direct light. Extended exposure to light can 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. Print the document.

Do vertical dark lines or streaks appear on prints?

Contact customer support.

The problem is solved.

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