Which printer? Some of the HP printers use an under/over type feed where the paper and the print come out on the same side. I have a Canon, which has a direct feed. You put the paper in the back of the printer upright, and it feeds through to the front. I also have a laser which will work either way.
I have an old HP photosmart with the loop-type feed, and cannot get any paper heavier than cardstock through it. Heavier paper does not bend enough for that type of feed.
The Canon is an old Pixma 6000D, it has the direct feed, and I can shove almost any type of paper in it. I was papercrafting Xmas cards.
If you are using an HP, your best bet would be to buy their products for whatever you are doing. The Canon isn't as fussy.
The other advice- go to the printers folder on your computer, and stop and delete the print job in the queue. Turn the printer off and on again.