This product works on the following models ModelModel NameSupport Link NEFAX770Nec Fax-Laser Nefax 770NEFAX770 Parts and Support NEFAX771Nec Fax-Laser Nefax 771NEFAX771 Parts and Support NEFAX880Nec Fax-Laser Nefax 880NEFAX880 Parts and Support