With the help of google here is your answer
Your arm of cover sensor has fallen off'
It is the switch fallen to bits
This switch
THis bit falls off
How yours looks
How it should be, or can be if you put it together again.
It might be possible to snap the part back on without partial disassembly, or simply shove something in there to hold the sensor in the 'closed' possition (If you lose a finger or two using this method, don't blame me)
The lid sensor is a tiny microswitch that is on the main circuit board...there is a white nylon lever arm snapped onto the switch.
if the lever arm falls off (like mine did) the 'cover open' error will last forever.
This may (or may not) be possible do fix without some disassembly. This lever arm should stick up through a rectangular hole that's approximately 1/2" to the right of the print head (assuming print head is parked in the middle) and behind it.
Most likely if your lever arm has fallen off, shaking the printer gently upside down with the cover open will allow it to fall out.
Now if you are a dentist or a surgeon, snapping the lever bit back on is no problem without taking anything apart.
I am neither. For the brave (of foolish) ones who like to do surgery, here goes. Here's how I took mine apart....if yours breaks into a million bits, don't blame me.
0) unplug the power and take the scanner cover off.
1) release the 'kickstand' from the scanner by prying and squeezing it with pliers until the two prongs pop out (or crack and break)
2) detach the scanner hinges by prying/squeezing with pliers until they pop off (or crack and break). (CAUTION: read step 3 below first...don't just yank the scanner off without reading step 3)
3) Carefully unplug ribbon cable and other connector to scanner and set scanner aside.
4) remove screws at front of beige plastic part....pry at the back carefully and this will pop off....sending the screws flying if you left them loose in their little wells. Don't worry, there are only two of them that really do anything anyway.
5) Look towards the rear of the printer and you will see the circuit board and the 'hole' where you can see the sensor, and possibly your white nylon lever arm lying pathetically down in the bowels of the printer.
6) Retrieve and Carefully snap the nylon lever arm back on, and think nasty thoughts about the brainiac who designed that part.
reverse the above steps. Put at least most of the screws back in, or the front panel may fall off at a later date.
Take care to GENTLY plug the ribbon cable and the other scanner connector back in, making sure it's seated all the way. Try not to bend or kink the end of it, or it will be toast.
Good luck, and happy lexmarking.....
Excellent solution, our lever arm came off completely and wasn't in the bowels of the printer. Superglued a piece of old business card on top cut to size which holds it down very well. Nice work!
Good to hear le Sarge
Soulvisitor
Thank you it worked
wow.. nearly 5 years later and it still works, glad you got it going.. :)
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I just wanted to say thank you to Soulvisitor for explaining how to fix that "open cover" error on my Lexmark X3470 printer. I did exactly what he said and it worked! I just wanted to tell him that I stuffed a plastic pen cap in the hole instead of trying to snap on that little tiny piece of plastic. The pen cap was the perfect size to wedge in that tiny hole. Thank you again!
Hello please tell me where the nylon lever arm goes..on my lexmark 3400..says cover open i have the nylon lever arm send me a picture
I changed the cartridge on my Lexmark X3470 printer and it says the cover is open and it is not.
Thank you very much. I microswitch was generally taken out of
board.
Pen cap works!! thanks
Which way does the nylon lever arm snap on? How much do I have to bench press to 'push' it on :)
SOURCE: Need to fix urgently lexmark
Normal
0
Driver could be corrupt.
Disconnect the printer or at least be sure it is turned off.
I'd do both and reinstall the CD software program that came with
the printer. When the software program asks you to connect the
printer to the USB port, do so and it should again work properly.
Hope this helps. Bud
SOURCE: lexmark x3470 has cover open in display will not do anything now
you need to open cover and undo and remove the grey cover inside the printer as there is a switch at back of machine which has *** off
SOURCE: My lexmark x3470 says cover open and its not and
Check if cover lid presses the cover botton
SOURCE: Lexmark x3470 printer says
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.
What to do
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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after changing to new ink cartrige printer keeps saying cover is open and indeed it is closed. help!!!!
can do nothing with lexmark 3740. it has worked in the past. recently jammed paper was pulled out and now have a "cover is open" message. it is not open.can't turn it off or do anything with it. what to do?
Printer states cover is open when its really not.
it says cover open even its not, tried to fix it but no
it says cover open even its not
mines the same it wont print it just says cover open and its not open yeahh i got that printer in the picture down there.
Changed the print cartridge and now will not print, states door is open, it's NOT!
Help.
put new cartridge and it says cover is opoen even when its not...
I HAVE TRIED EVERYTHING STILL SAYING COVER OPEN...URRRRRRRRRRR HELP
I have the same problem always tell 'Cover Open' even if it is closed.
Keeps saying Cover open
cover stays open cover says cover open
I had the same problem with my printer displaying "cover open". I used Soulvisitor's guide. The pictures that were posted were a great help. I am not a technical person, but my term paper outline is due and I need my printer. I followed the directions Soulvisitor provided with the pics and it was that little plastic arm! I guess when I changed the cartridge it got knocked off. Be careful to unplug that white tape looking thing. I thought I ripped it out, but realized it was fine and it plugs right back in.
Thanks!
Changed ink cart and nothing works just saying Cover Open
Just wanted to say thankyou, thankyou, thankyou. was about to throw a perfectly good printer out before I found this. Pictures form soulvisitor were invaluable!!!
Had to dismantle the printer twice though as switch fell off again!!!
cover switch fell off
I had the same problem. Thank you for this post and the solution. I managed to take everything apart without damaging the printer at all and fixed that stupid lever. Thank you to the person who figured this out.
printer says cover open but it is closed
in stall my lexmark 3470 no cd
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