Chances are the rubber wheels which advance the paper through the paper
transport are glazed. This happens when coated and stiff papers are used.
You can try taking a piece of uncoated student watercolor paper and
spray either Isopropyl alcohol or ammoniated window cleaner onto the
middle area making it damp but not wimp, and leaving a small border
around the edge so that part of the paper is dry. Then using the load
and eject buttons, load the paper through the printer without printing.
Do so several times, turning the paper around and upside down.
Allow the printer to dry somewhat and then run some bond paper through
several times to help dry off any residual solvents.
Try to run the quality paper through the printer so that the more
flexible curve goes through the paper rollers rather than the other
direction/grain which is stiffer. You can also slightly roll the paper
to soften its ability to curve.
If this doesn't work you may have to use cotton swabs to manual clean
the rubber advancing rollers in the paper transport system.
Art
If you are interested in issues surrounding e-waste,
I invite you to enter the discussion at my blog:
http://e-trashtalk.spaces.live.com/