Has anybody tried to make a print from the Arduboy screen with an instant photo paper? For example Fuji sells under the Instax brand instant photo paper that is developed with OLED. So I am wondering if it would be possible to take such a photo paper, lay it over the screen for a certain amount of time to create a kind of direct print from screen for the Arduboy.
You might now ask what this would be good for. One use for it would be for a bitcoin paper-wallet printer. The private key could be shown as a QR code, which could then be permanently recorded on the instant photo paper.
One issue with traditional paper wallets is that printers can store print data, or have some other impression or image from the last print from which the private key could be reconstructed. With the above outlined process this problem would be eliminated. But it might also be neat to take an impression of a high-score in a game or capture some other screen image displayed on the Arduboy.