Based on this product's specifications, here are some alternatives and similar models
Synchronous drive belt Ricoh M0B11533 (120S3M291) for office equipment
Summary description:
Synchronous drive belt Ricoh M0B11533 (120S3M291) designed for use in Ricoh office equipment and compatible devices. This toothed timing belt has the 120S3M291 specification and is intended for reliable mechanical power transmission, maintaining precise synchronization between shafts. Typical use cases include paper feed, fuser or transport mechanisms in printers, copiers and multifunction devices.