FAQs & Troubleshooting

FAQs & Troubleshooting

How do I clean the laser scanner windows?

Clean the laser scanner windows as follows:

DO NOT use flammable substances near the machine. DO NOT use any type of spray to clean the inside or outside of the machine. Doing this may cause a fire or electrical shock.

  • DO NOT use isopropyl alcohol to clean the laser scanner windows.
  • DO NOT touch the laser scanner windows with your fingers.

  1. Turn off the machine's power switch.
    Unplug the telephone line cord first (for MFC users), disconnect all cables, and then unplug the power cord from the AC power outlet.

  2. Press the front cover release button and then open the front cover.
  1. Hold the green handle of the drum unit. Lift the drum unit up and then pull it out until it stops.
  1. Release the gray lock lever (1) that is on the left side of the machine. Lift the front of the drum unit and pull the drum unit completely out of the machine using the green handles on the drum unit.

After you have just used the machine, some internal parts of the machine will be extremely hot. When you open the front cover of the machine, DO NOT touch the shaded parts shown in the illustration.

  • We recommend that you place the drum unit on a clean, flat surface with a piece of disposable paper underneath it in case you accidentally spill or scatter toner.
  • Hold the handles of drum unit when you carry it. DO NOT hold the sides of the drum unit.

To prevent damage to the machine from static electricity, DO NOT touch the electrodes shown in the illustration.

  1. Wipe the scanner windows (1) with a dry, lint-free cloth.
  1. Put the drum unit back in the machine as follows.

    1. Make sure that the gray lock lever (1) is in the up position and put the drum unit in the machine. Push down the gray lock lever (1).

      When you put the drum unit in the machine, match the green guides (1) of the drum unit handle to the green arrows (2) on both sides of the machine.

    2. Push the drum unit in until it stops.

  1. Close the front cover of the machine.
  1. Plug the machine's power cord back into the AC power outlet first, and reconnect all cables and telephone line cord (for MFC users). Turn on the machine's power switch.

If your question was not answered, have you checked other FAQs?

Have you checked the manuals?

If you need further assistance, please contact Brother customer service:

Related Models

DCP-9045CDN, MFC-9840CDW

Content Feedback

To help us improve our support, please provide your feedback below.

Step 1: How does the information on this page help you?

Step 2: Are there any comments you would like to add?

Please note this form is used for feedback only.