I have a LaserJet 3390 that won't pick up paper from the tray. I hear it grinding and spinning for a few seconds (normal sounds) but then gives up with this message "no paper pickup".
I can manually feed with tray 2, which is single sheet fed.
I've opened up parts I can, blown out dust and debris, it's actually pretty clean and not that old. I cleaned some of the plastic rollers, but the rubber ones still seem to have good grip and aren't too dirty. The plate under the paper with a spring to press the paper up into the rollers functions right. Everything looks good.
With the paper tray out, I can press up the little tab and watch the rollers, it does spin 3 times before giving up, so I know mechanically it's working.
Can it really be the rubber roller? I have a hard time believing it can scrape against the paper 3 times and not even budge it since it feels pretty sticky still.