You may need to tweak the size a bit to accommodate your printer. Here's what my new gaskets ended up looking like.

If you're careful, you can reuse the gaskets. If not, then you will have to cut a new pair. I used construction paper (my wife is a preschool teacher) to make new gaskets for two of my wiper motors. Click on the picture below if you'd like to download a template for cutting out the new gaskets.