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Lexmark printer i have a lexmark 3400 and it is currently saying that the cover isnt closed and it wont shut off. please help.

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Look at the cover, there should be a micro switch on it ( look for a hole, in that hole should be a lever, when pushed it should make a clicking sound) you will need to take it apart and adjust that lever.

Posted on Feb 14, 2008

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When i try to print on my Lexmark 2300 it keeps saying scanner unit is open, but it isn't. I've turned it off and on opened and closed the unit but this hasn't helped


It could be the cartridges in the carrier. Please follow the steps below to identify and fix the problem:

1. Make sure the printer is on.

2. Open the printer cover. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.

3. Remove both cartridges from the carrier.

4. Close the printer cover.

5. Unplug and re-plug the printer into the power outlet to reset it.

6. When the printer turns on, reinsert one cartridge first.

7. Close the printer cover and check for any errors.

8. If no error appears, reinsert the other cartridge. Close the printer cover.

9. Replace whichever cartridge is causing the error to appear with a new cartridge. You may also try to insert a different known working cartridge to determine if the cartridge you are currently using is faulty.



If the problem continues, please contact Lexmark Technical Support Center for additional assistance.




Aug 15, 2011 | Lexmark Z2300 InkJet Printer

2 Answers

Lexmark 3400 printer display says cover is open. Cover is not open. apparently it is mis reading status. will not print or turn off. Its stuck. What do I do? D.S.T


do a hard shut down..unplug power cord...that would make it go off. them leave it off for 2-3 minutes..then turn it back on and let me know the status

Jun 05, 2008 | Office Equipment & Supplies

1 Answer

Error message cover open and it isnt


Reinsert your cartridges after properly cleaning them

May 27, 2010 | Lexmark X3470 All-In-One InkJet 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.

This can happen if the lever on the cover open sensor is knocked off the switch assembly.

Nov 30, 2009 | Office Equipment & Supplies

1 Answer

Printer Icon isnt on the desktop and doesnt show in the programs


You need to update the printer application driver, please follow the steps given below:

1. Insert the Lexmark CD and close the installation window.
2. Go to "Start" and "My Computer."
3. Double click on the CD-ROM drive letter (for example, D:Lexmark 3400).
4. Double click on the "Applications" folder to open it.
5. Double-click on the "Setup" icon to update the drivers completely."
6. Please wait for few minutes and then try to open the applications again.

Apr 11, 2009 | Lexmark X3480 All-In-One Printer

2 Answers

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If your printer still in warranty please replace the printer or This is the problem the cover switch in the printer you need to replace the switch this switch is very difficult to find in the printer is usually hidden ,you need to check the cover there will be a projection in the cover which will go into a slot thats where the switch is located..

Good luck....

Oct 30, 2008 | Lexmark X3470 All-In-One InkJet Printer

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im looking for the software to run 3400 can you help me get it

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Hi, can you help me? This printer1.gif was working fine for about 4 months and then in wont print anything anoymore. All it says to do is close the lid, but the dam thing isnt open. I tried opening and closing, removing ink4.gif cartrige and even slamming it down but still say door opened?

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Lexmark-3400 install trouble.


Try installing the disc as Administrator account as opposed to a generic user account.

Most problems with Vista stem from the strict protocol of not being able to modify windows in any way, unless logged on as Admin.

This may also be the case for several other applications or programs as well.

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