My HP Envy 5530 prints everything just find, but stopped accepting card stock paper all of a sudden. It is the same card stock paper I have been using. It feeds the paper part way and sounds as though it is printing the photos, but nothing prints. After a while, it ejects the card stock paper. I do not get a jam; I do not get error messages. Most frustrating - I do not get a photo. This just started today. I have no other problems with the printer. I have cleaned the printer and the rollers. It does not have a problem printing on regular paper, just card stock paper. Help!