Question about Brother MFC-8840D All-In-One Laser Printer

1 Answer

Doc. Cover Open displayed

Whatever I try I can't get this message off the display panel and am unable to fax, copy or scan. Any suggestions?

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  • 81 Answers

That usually means some sensor giving you trouble.

This is what brother recomends:

How do I clear the message Cover Open or Please Close Cover from the display?


The message Cover Open or Pls Close Cover may appear if the front cover
for the drum was not closed securely. Verify the cover is closed
securely by pressing the cover release button located in the front of
the unit below the Output Tray Support Flap and open the front cover.
Close the cover until it clicks into place.

If the message continues to appear on the display verify the drum and
toner assembly is installed correctly by following the steps listed
below:

1. Press the cover release button located in the front of the unit and
open the front cover.

2. Remove the drum unit and toner cartridge from the unit by lifting it
up and out. Place it on a drop cloth or disposable paper to avoid
scattering toner.

3. Hold down the blue lock lever located on the right side of the drum
and lift the toner cartridge out of the drum unit.

4. Reinstall the toner cartridge into the drum unit by inserting it in
the drum until it clicks into place

5. Reinstall the drum unit into the unit. Make sure it is securely in
place.

6. Close the cover until it clicks into place


If that doesn't fix it, I guess you will have to talk to their support people.


Good luck!

Posted on Dec 15, 2008

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