Question about Brother MFC 8440 All-In-One Laser Printer

2 Answers

'Doc Cover open' error message

I cannot get rid of this message even though the cover is closed. Is there a sensor switch I can disable? My email address is alfred@sfsgo.com
Regards
Fred Pettit

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  • Expert
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NO no Sensor to disable
Check the Tab on the top of the Document Door
there is a table on it. Make sure the Senor Tab is NOT broken.
if it is you will have to have someone replace the Cover. their's a sensor on the document door make sure that not offset if it missing the tab it will ask you to close the door.
Check those two things first.
Worst Case you have a Bad Sensor and will need replacement.

Posted on Sep 13, 2009

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Look for switch where the doc door closes and insert a piece of paper to trigger it, message should clear, adjust switch.

Posted on Aug 21, 2008

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Main Error MINOLTA DI 1611, DI 2011 Messages and Their Remedies


PAPER JAM A paper misfeed occurred in the
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Open the cover at the indicated
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OPEN XXX SIDE COVER
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ORIGINAL DOC.JAM A paper misfeed occurred in the
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(Flashing alternately)
OPEN DOC.FEED COVER
∗REMOVE PAPER IN
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FRONT COVER OPEN The Front Cover of the main unit is
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DOC.FEED COVER OPEN The Document Feeder Cover is
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COVER
TONER EMPTY The toner is empty. Copying and
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indicates the paper tray, and
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on Dec 18, 2009 | Printers & Copiers

1 Answer

The error message says Doc. Cover open but the cover is closed


You will probably have a broken hinge at the back left hand side of the Doc. cover.
This means that the cover won't close properly at the back corner, and the cover sensing switch won't actuate.

Dec 08, 2009 | Brother MFC-8840D All-In-One Laser Printer

1 Answer

I changed the ink in my Lexmark 3400 printer and I keep getting an error message "cover open" and it's not open. I tried everything....unloading the software then reloading the software, shutting it off...


The printer displays a 'Cover open, please close cover' error message, even though the cover is closed.

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1 Answer

Lexmark x3470 printer says "cover open" and it will not do anything. Curtis


Try these as I found them from Lexmark's website

Solution What you will see
The printer displays a 'Cover open, please close cover' error message, even though the cover is closed.
Possible cause of the error
This can happen if the lever on the cover open sensor is knocked off the switch assembly.
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Take the following steps to try to determine if there is a hardware fault:
Steps Actions 1 Remove and replace the cartridges from the printer. 2 Disconnect the power cable and the USB cable. 3 Check that the power cable is plugged directly into a wall socket. 4 Reconnect the power cable. 5 Close the printer cover. 6 If the error persists, please contact Lexmark Technical Support for further instructions.

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In my case, all I had to do the fix the problem was close the cover and make sure it was fully seated by firmly pressing down the right edge of the cover until I heard a plasticky "click" noise. After that, the problem went away.

Hope this helps.

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1 Answer

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2 Answers

Error mesage


No solution, but I have the same problem. THe printer starts up fine, I hear no grinding noises or other "funny" nioses, and then displays no error message... UNTIL I ask it to print. Then I get a message that says, "Pls (please) Open Cover".

I open the cover and it says "Please Close Cover".

I close the cover and it says, "Please Open Cover"

and this happens forever!

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Stefan

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1 Answer

Doc cover open


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Dodgy repair - tape switch closed, but doc feeder will not work properly/can use glass.

Repair - Easy removal of three screws and replacing 20buck hinge bought from brother dealer...part no.LE8731001 Hinge assy left.

Now that's FIXYA!

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5 Answers

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