Kyocera 302RV09110 Guide Retard is a separation pad guide for the paper-feed system in compatible ECOSYS printers. It helps prevent multiple sheets from feeding at once, addressing a common cause of paper jams.
The listing identifies it for the P2235dn, P2235dw, P2040dn and P2040dw, as well as the M2135dn, M2635dn, M2635dw, M2735dw, M2040dn, M2540dn, M2540dw and M2640idw. This is a specific paper-feed component intended for the listed models.