Question about Lexmark X3470 All-In-One InkJet Printer

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Lexmark 3400 cover open stays on!!

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Re: lexmark 3400 cover open stays on!!

Switch at back is busted, see a 3470 link

Posted on Jan 15, 2008

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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.

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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

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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....

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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.

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1 Answer

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Download the driver from:

INstall printer to another computer

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