Based on this product's specifications, here are some alternatives and similar models
Finisher accessory for Lexmark scanners — model 20L8809, black, quantity 1
Summary description:
Finisher (accessory) Lexmark model 20L8809 designed for use with compatible Lexmark scanners. Finishers provide post-scan handling such as stapling/stacking (device-dependent). This black spare part is supplied as one unit per pack and serves as a replacement or upgrade component for maintenance and workflow finishing tasks.