I have a x4650 that says carrier jam and theres nothing in it. there is this long thin clear piece that i think came out it, how do i get it back in.

>> Remove the print cartridges.
>> Gently move the carriage from Right to Lift, Left to Right twice.
>> Re-insert the print cartridges
>> Try printing.


It may help.

http://images.lexmark.com/publications/pdfs/2007/3500/mhs/en/d0e10275.html

The thin strip could be the encoder strip (transparent strip) which is responsible for the proper movement of the cartridge carrier along the carrier assembly. Please contact Lexmark Technical Support Center for additional assistance.

Remove obstructions from the carrier path or close the cartridge carrier lids, and then press the Select button.You can try resetting the printer by unplugging it from the wall. Now remove the power brick for 60 seconds. This will reset any error messages the printer is getting.
There is almost always something in the paper path. (makeup brushes, push pins, paper clips, insect parts, jigsaw puzzle pieces, coins, toys etc. If all else fails, turn it upside down and shake.
or try to run a piece of thin 3X12 flexible plastic up and down along the paper path.
(It has to be stiff enough so it doesn't kink up and strong enough to shove out any blockage).In the absence of plastic, you can use some stiff cardboard or cut a piece of file folder to fit.

Check your entire feed to make sure there is NO paper jams. Sometimes even the smallest little piece of paper can get jammed up and can e hard to see.
You can also check your manual for diagnostic mode and alignment print page.

Is the thin strip of plastic transparent ? and is it completely out its places? Please let me know and are you getting any error message ...

hi,
Follow the wizard on the following website , to help you to pinpoint the problem
http://tinyurl.com/3nh59x


Thanks
Proton

contact lexmark sounds like a major fault is it still under warranty ??? I dont think a virus would explain your printers strange problem.

Is it a clear plastric strip with little black lines through it?

If so that is your encoder strip, it is how the printer knows where the head is. If it's broken it needs to be replaced. If it just came out of it's holder you may be able to put it back into place. Sounds like it snapped, not good.

IP4000 12 flashing lights error 6A00 problem, and notify you when a new solution is offered.