Katun 43829 Toner yellow 2.8K pages (replaces Olivetti B0951) for Olivetti d-Color P 2021. Katun provides imaging supplies, photoreceptors and parts for copiers, printers, MFPs, fax machines and digital duplicators from virtually every leading original equipment manufacturer. Katun products are often the only OEM-equivalent alternative available to dealers. Compatible Printers: Olivetti D-Color P 2121, Olivetti D-Color P 2021.