My scanner plays games with me sometimes too. I have to restart the computer then is recognizes it.
In order to get the picture onto fabric, they have the "Fabric sheets for inkjet printers" you can buy at JoAnns, Walmart, Hancock Fabrics, and I think I've seen them at Hobby Lobby. There are 10 sheets in the pack.
You scan the picture into your computer and save it in your pictures. The open the file, load one of the sheets into your printer and print.
There are directions on the package as to how to complete the process. Then when I'm ready to add the block to a quilt, I remove the picture from the paper backing.
It's even washable!!
Hope this helps.