Based on this product's specifications, here are some alternatives and similar models
Feeding Roller Kit Sharp MX-312RT for MX-312RT series copiers and printers
Summary description:
Feeding Roller Kit Sharp MX-312RT is a replacement maintenance kit designed for Sharp MX-312RT series copiers and printers. The kit contains feeding rollers used to transport paper through the paper path, helping restore reliable sheet pickup and reduce jams. Intended for routine service and parts renewal to maintain print quality and feeding performance in office equipment.