My lexmark x5150 says parper jam but no paper is jammed what do I do?

SOURCE: Lexmark P6250 paper Jam

Don't know if it's the same problem i had but its maybe worth a try. Canon MP160
My paper went in a little, the wheels were turning but it didn't take the rest of the paper or print.
Someone replied to my problem, i tried it and it fixed 1st time. Also seems to of worked for others

Solution:- Use a piece of thin card, a magazine cover is what i used, make sure its A4 size then try to print something, as the paper starts moving push it through! and hey presto it worked for me, everything printing fine now

SOURCE: LEXMARK E342N

Start with a reset of the device, do you need instructions?

SOURCE: PAPER JAM ERROR MESSAGE

your sensor flag in the back is broken or missing

SOURCE: paper jam lexmark x3470

#2 works for an x3470, but jostling the small cylinder that accepts the paper (nudge it gently toward the printer) seems to be what pulls back the microswitch...

SOURCE: 202 paper jam

I have this problem too, but the 2 sensors on the fuser are not stuck and seem ok to me. Any other suggestions?