Canon MX870 Receipt Tray

thingiverse

This is a tray for a Canon MX870 multifunction printer/scanner to guide receipts through the ADF (auto document feeder). The scanner has guides that come out from the sides to accept other sizes of paper, but they don't scrunch down small enough to hold receipts reliably. So receipts often twist as they are pulled into the ADF, jamming it up. This guide sits in the scanner's tray and hold standard-size receipts. The scanner will still sometimes jam on crumpled receipts, but not nearly as much as without the guide.