Each page was too large. They did not fit properly into the tray. Being too snug each page created a jam. This continued to be a problem even when the pages were fed one at a time. Unfortunately 1 bought 1000 🤦♀️
They fed through my printer OK but I could not get these Staples cards to separate cleanly. The edges would wind up looking uneven or torn. I get better results (clean crisp edges) when I use Avery-brand cards.